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Finding the Fourth Proportional to 2,542.22, 3,813.97 and 876.37

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Solution

The fourth proportional to 2,542.22, 3,813.97 and 876.37 is: 1,314.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.22 : 3,813.97 = 876.37 : x
  2. Step 2: Convert to fraction form
    2,542.22/3,813.97 = 876.37/x
  3. Step 3: Cross multiply
    2,542.22x = 3,813.97 × 876.37
  4. Step 4: Simplify right side
    2,542.22x = 3,342,445.96
  5. Step 5: Solve for x
    x = 3,342,445.96/2,542.22
  6. Step 6: Final answer
    x = 1,314.78

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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.