Size Scaling Analogy

Size Scaling Figure Analogy problems involve figures that are enlarged or reduced by a specific scale factor. You must identify the scaling factor and apply it to a new figure. These problems test your understanding of proportional size changes and your ability to identify scale factors from visual comparison.

10Worksheets
200+Practice Questions
BeginnerDifficulty
2-3 hoursHours to Master

Introduction to Size Scaling Analogy

Size Scaling Figure Analogy problems involve figures that are enlarged or reduced by a specific scale factor. You must identify the scaling factor and apply it to a new figure. These problems test your understanding of proportional size changes and your ability to identify scale factors from visual comparison.

Prerequisites

Understanding of scale factors (2×, 3×, 0.5×) Basic shape recognition Proportional reasoning Size comparison skills
Why This Matters: Size Scaling problems appear in 1-2 questions in SSC CGL and Banking PO exams. They test proportional reasoning and visual estimation skills.

How to Solve Size Scaling Analogy Problems

1

Step 1: Compare Figure A and Figure B to determine the scaling factor

2

Step 2: Calculate the ratio: size of Figure B ÷ size of Figure A

3

Step 3: The scaling factor may be whole number (enlargement) or fraction (reduction)

4

Step 4: Apply the same scaling factor to Figure C

5

Step 5: Ensure the shape remains the same (only size changes)

6

Step 6: The correct answer is the figure with same shape but scaled size

7

Step 7: Verify proportions are preserved

Pro Strategy: Measure or estimate the relative size of Figure A and Figure B. Common scale factors are 2×, 3×, 1/2, 1/3. Apply the same factor to Figure C, maintaining all shape proportions.

Example Problem

Example: Figure A is a small circle. Figure B is a larger circle (2× size). Figure C is a small square. What should Figure ? look like? Solution: Step 1: A (small circle) → B (large circle) has scale factor 2× Step 2: Figure C is a small square Step 3: Apply scale factor 2×: small square becomes larger square Step 4: The answer is a larger square (same shape, double size) Answer: Larger square

Pro Tips & Tricks

  • Scale factor = size of B ÷ size of A
  • If B is larger than A → enlargement (scale factor > 1)
  • If B is smaller than A → reduction (scale factor < 1)
  • All dimensions scale proportionally (length, width, height)
  • Area scales by (scale factor)², but focus on linear dimensions
  • Common scale factors: 2×, 3×, 4×, ½, ⅓, ¼

Shortcut Methods to Solve Faster

If shapes are similar but different sizes, scaling is the transformation
Check if corresponding sides are in the same ratio
Scale factor = new side length ÷ original side length
If no size change, scale factor = 1 (identity transformation)

Common Mistakes to Avoid

Applying the wrong scale factor (e.g., using 3× when it's 2×)
Forgetting that reduction makes the figure smaller
Applying scaling to only one dimension (must scale all dimensions)
Confusing scaling with rotation or reflection

Exam Importance

Size Scaling Analogy is an important topic for various competitive exams. Here's how frequently it appears:

SSC CGL
1-2 questions
BANKING PO
1-2 questions
RAILWAYS RRB
1-2 questions
CAT
0-1 questions
INSURANCE
1-2 questions

Ready to Master Size Scaling Analogy?

Start with Worksheet 1 and work your way up to expert level! Each worksheet includes:

20 practice questions
Detailed solutions
Step-by-step explanations
Start Practicing Now