Home / 2,231.20-3,347.07-932.50

Finding the Fourth Proportional to 2,231.20, 3,347.07 and 932.50

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Solution

The fourth proportional to 2,231.20, 3,347.07 and 932.50 is: 1,398.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.20 : 3,347.07 = 932.50 : x
  2. Step 2: Convert to fraction form
    2,231.20/3,347.07 = 932.50/x
  3. Step 3: Cross multiply
    2,231.20x = 3,347.07 × 932.50
  4. Step 4: Simplify right side
    2,231.20x = 3,121,142.78
  5. Step 5: Solve for x
    x = 3,121,142.78/2,231.20
  6. Step 6: Final answer
    x = 1,398.86

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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.