Home / 5,155.46-7,732.28-2,381.90

Finding the Fourth Proportional to 5,155.46, 7,732.28 and 2,381.90

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Solution

The fourth proportional to 5,155.46, 7,732.28 and 2,381.90 is: 3,572.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.46 : 7,732.28 = 2,381.90 : x
  2. Step 2: Convert to fraction form
    5,155.46/7,732.28 = 2,381.90/x
  3. Step 3: Cross multiply
    5,155.46x = 7,732.28 × 2,381.90
  4. Step 4: Simplify right side
    5,155.46x = 18,417,517.73
  5. Step 5: Solve for x
    x = 18,417,517.73/5,155.46
  6. Step 6: Final answer
    x = 3,572.43

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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.