Home / 3,787.31-5,680.92-1,013.90

Finding the Fourth Proportional to 3,787.31, 5,680.92 and 1,013.90

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Solution

The fourth proportional to 3,787.31, 5,680.92 and 1,013.90 is: 1,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.31 : 5,680.92 = 1,013.90 : x
  2. Step 2: Convert to fraction form
    3,787.31/5,680.92 = 1,013.90/x
  3. Step 3: Cross multiply
    3,787.31x = 5,680.92 × 1,013.90
  4. Step 4: Simplify right side
    3,787.31x = 5,759,856.38
  5. Step 5: Solve for x
    x = 5,759,856.38/3,787.31
  6. Step 6: Final answer
    x = 1,520.83

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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.