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Finding the Fourth Proportional to 3,937.92, 5,900.16 and 2,781.44

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Solution

The fourth proportional to 3,937.92, 5,900.16 and 2,781.44 is: 4,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.92 : 5,900.16 = 2,781.44 : x
  2. Step 2: Convert to fraction form
    3,937.92/5,900.16 = 2,781.44/x
  3. Step 3: Cross multiply
    3,937.92x = 5,900.16 × 2,781.44
  4. Step 4: Simplify right side
    3,937.92x = 16,410,941.03
  5. Step 5: Solve for x
    x = 16,410,941.03/3,937.92
  6. Step 6: Final answer
    x = 4,167.41

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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.