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Finding the Fourth Proportional to 5,147.91, 7,721.87 and 1,450.17

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Solution

The fourth proportional to 5,147.91, 7,721.87 and 1,450.17 is: 2,175.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.91 : 7,721.87 = 1,450.17 : x
  2. Step 2: Convert to fraction form
    5,147.91/7,721.87 = 1,450.17/x
  3. Step 3: Cross multiply
    5,147.91x = 7,721.87 × 1,450.17
  4. Step 4: Simplify right side
    5,147.91x = 11,198,016.97
  5. Step 5: Solve for x
    x = 11,198,016.97/5,147.91
  6. Step 6: Final answer
    x = 2,175.26

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Similar ratio
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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.