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Finding the Fourth Proportional to 2,542.89, 3,814.34 and 898.55

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Solution

The fourth proportional to 2,542.89, 3,814.34 and 898.55 is: 1,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.89 : 3,814.34 = 898.55 : x
  2. Step 2: Convert to fraction form
    2,542.89/3,814.34 = 898.55/x
  3. Step 3: Cross multiply
    2,542.89x = 3,814.34 × 898.55
  4. Step 4: Simplify right side
    2,542.89x = 3,427,351.64
  5. Step 5: Solve for x
    x = 3,427,351.64/2,542.89
  6. Step 6: Final answer
    x = 1,347.82

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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.