Home / 3,487.38-5,231.83-1,147.29

Finding the Fourth Proportional to 3,487.38, 5,231.83 and 1,147.29

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Solution

The fourth proportional to 3,487.38, 5,231.83 and 1,147.29 is: 1,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.38 : 5,231.83 = 1,147.29 : x
  2. Step 2: Convert to fraction form
    3,487.38/5,231.83 = 1,147.29/x
  3. Step 3: Cross multiply
    3,487.38x = 5,231.83 × 1,147.29
  4. Step 4: Simplify right side
    3,487.38x = 6,002,406.08
  5. Step 5: Solve for x
    x = 6,002,406.08/3,487.38
  6. Step 6: Final answer
    x = 1,721.18

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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.