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Finding the Fourth Proportional to 3,951.39, 5,914.65 and 2,711.55

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Solution

The fourth proportional to 3,951.39, 5,914.65 and 2,711.55 is: 4,058.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.39 : 5,914.65 = 2,711.55 : x
  2. Step 2: Convert to fraction form
    3,951.39/5,914.65 = 2,711.55/x
  3. Step 3: Cross multiply
    3,951.39x = 5,914.65 × 2,711.55
  4. Step 4: Simplify right side
    3,951.39x = 16,037,869.21
  5. Step 5: Solve for x
    x = 16,037,869.21/3,951.39
  6. Step 6: Final answer
    x = 4,058.79

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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.