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Finding the Fourth Proportional to 6,876, 9,488.86 and 3,732.20

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Solution

The fourth proportional to 6,876, 9,488.86 and 3,732.20 is: 5,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876 : 9,488.86 = 3,732.20 : x
  2. Step 2: Convert to fraction form
    6,876/9,488.86 = 3,732.20/x
  3. Step 3: Cross multiply
    6,876x = 9,488.86 × 3,732.20
  4. Step 4: Simplify right side
    6,876x = 35,414,323.29
  5. Step 5: Solve for x
    x = 35,414,323.29/6,876
  6. Step 6: Final answer
    x = 5,150.43

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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.