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Finding the Fourth Proportional to 3,737.92, 5,607.01 and 1,272.43

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Solution

The fourth proportional to 3,737.92, 5,607.01 and 1,272.43 is: 1,908.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,737.92 : 5,607.01 = 1,272.43 : x
  2. Step 2: Convert to fraction form
    3,737.92/5,607.01 = 1,272.43/x
  3. Step 3: Cross multiply
    3,737.92x = 5,607.01 × 1,272.43
  4. Step 4: Simplify right side
    3,737.92x = 7,134,516.90
  5. Step 5: Solve for x
    x = 7,134,516.90/3,737.92
  6. Step 6: Final answer
    x = 1,908.69

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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.