Home / 2,691.38-4,031.82-1,517.79

Finding the Fourth Proportional to 2,691.38, 4,031.82 and 1,517.79

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Solution

The fourth proportional to 2,691.38, 4,031.82 and 1,517.79 is: 2,273.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.38 : 4,031.82 = 1,517.79 : x
  2. Step 2: Convert to fraction form
    2,691.38/4,031.82 = 1,517.79/x
  3. Step 3: Cross multiply
    2,691.38x = 4,031.82 × 1,517.79
  4. Step 4: Simplify right side
    2,691.38x = 6,119,456.08
  5. Step 5: Solve for x
    x = 6,119,456.08/2,691.38
  6. Step 6: Final answer
    x = 2,273.72

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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.