Home / 7,428.08-11,140.68-3,729.32

Finding the Fourth Proportional to 7,428.08, 11,140.68 and 3,729.32

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Solution

The fourth proportional to 7,428.08, 11,140.68 and 3,729.32 is: 5,593.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.08 : 11,140.68 = 3,729.32 : x
  2. Step 2: Convert to fraction form
    7,428.08/11,140.68 = 3,729.32/x
  3. Step 3: Cross multiply
    7,428.08x = 11,140.68 × 3,729.32
  4. Step 4: Simplify right side
    7,428.08x = 41,547,160.74
  5. Step 5: Solve for x
    x = 41,547,160.74/7,428.08
  6. Step 6: Final answer
    x = 5,593.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.