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Finding the Fourth Proportional to 3,737.88, 5,158.46 and 2,081.88

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Solution

The fourth proportional to 3,737.88, 5,158.46 and 2,081.88 is: 2,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,737.88 : 5,158.46 = 2,081.88 : x
  2. Step 2: Convert to fraction form
    3,737.88/5,158.46 = 2,081.88/x
  3. Step 3: Cross multiply
    3,737.88x = 5,158.46 × 2,081.88
  4. Step 4: Simplify right side
    3,737.88x = 10,739,294.70
  5. Step 5: Solve for x
    x = 10,739,294.70/3,737.88
  6. Step 6: Final answer
    x = 2,873.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.