Home / 3,487.92-5,231.31-1,147.96

Finding the Fourth Proportional to 3,487.92, 5,231.31 and 1,147.96

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Solution

The fourth proportional to 3,487.92, 5,231.31 and 1,147.96 is: 1,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.92 : 5,231.31 = 1,147.96 : x
  2. Step 2: Convert to fraction form
    3,487.92/5,231.31 = 1,147.96/x
  3. Step 3: Cross multiply
    3,487.92x = 5,231.31 × 1,147.96
  4. Step 4: Simplify right side
    3,487.92x = 6,005,302.73
  5. Step 5: Solve for x
    x = 6,005,302.73/3,487.92
  6. Step 6: Final answer
    x = 1,721.74

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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.