Home / 4,929.74-7,372.15-3,681.21

Finding the Fourth Proportional to 4,929.74, 7,372.15 and 3,681.21

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Solution

The fourth proportional to 4,929.74, 7,372.15 and 3,681.21 is: 5,505.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.74 : 7,372.15 = 3,681.21 : x
  2. Step 2: Convert to fraction form
    4,929.74/7,372.15 = 3,681.21/x
  3. Step 3: Cross multiply
    4,929.74x = 7,372.15 × 3,681.21
  4. Step 4: Simplify right side
    4,929.74x = 27,138,446.12
  5. Step 5: Solve for x
    x = 27,138,446.12/4,929.74
  6. Step 6: Final answer
    x = 5,505.04

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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.