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Finding the Fourth Proportional to 5,001.27, 7,501.28 and 3,891.80

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Solution

The fourth proportional to 5,001.27, 7,501.28 and 3,891.80 is: 5,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,001.27 : 7,501.28 = 3,891.80 : x
  2. Step 2: Convert to fraction form
    5,001.27/7,501.28 = 3,891.80/x
  3. Step 3: Cross multiply
    5,001.27x = 7,501.28 × 3,891.80
  4. Step 4: Simplify right side
    5,001.27x = 29,193,471.44
  5. Step 5: Solve for x
    x = 29,193,471.44/5,001.27
  6. Step 6: Final answer
    x = 5,837.21

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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.