Home / 5,242.72-7,232.64-3,249.28

Finding the Fourth Proportional to 5,242.72, 7,232.64 and 3,249.28

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Solution

The fourth proportional to 5,242.72, 7,232.64 and 3,249.28 is: 4,482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.72 : 7,232.64 = 3,249.28 : x
  2. Step 2: Convert to fraction form
    5,242.72/7,232.64 = 3,249.28/x
  3. Step 3: Cross multiply
    5,242.72x = 7,232.64 × 3,249.28
  4. Step 4: Simplify right side
    5,242.72x = 23,500,872.50
  5. Step 5: Solve for x
    x = 23,500,872.50/5,242.72
  6. Step 6: Final answer
    x = 4,482.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.