Home / 2,331.73-3,497.28-687.97

Finding the Fourth Proportional to 2,331.73, 3,497.28 and 687.97

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Solution

The fourth proportional to 2,331.73, 3,497.28 and 687.97 is: 1,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.73 : 3,497.28 = 687.97 : x
  2. Step 2: Convert to fraction form
    2,331.73/3,497.28 = 687.97/x
  3. Step 3: Cross multiply
    2,331.73x = 3,497.28 × 687.97
  4. Step 4: Simplify right side
    2,331.73x = 2,406,023.72
  5. Step 5: Solve for x
    x = 2,406,023.72/2,331.73
  6. Step 6: Final answer
    x = 1,031.86

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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.