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Finding the Fourth Proportional to 5,427, 7,489.26 and 2,943

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Solution

The fourth proportional to 5,427, 7,489.26 and 2,943 is: 4,061.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427 : 7,489.26 = 2,943 : x
  2. Step 2: Convert to fraction form
    5,427/7,489.26 = 2,943/x
  3. Step 3: Cross multiply
    5,427x = 7,489.26 × 2,943
  4. Step 4: Simplify right side
    5,427x = 22,040,892.18
  5. Step 5: Solve for x
    x = 22,040,892.18/5,427
  6. Step 6: Final answer
    x = 4,061.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.