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Finding the Fourth Proportional to 2,493.28, 3,740.55 and 738.35

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Solution

The fourth proportional to 2,493.28, 3,740.55 and 738.35 is: 1,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,493.28 : 3,740.55 = 738.35 : x
  2. Step 2: Convert to fraction form
    2,493.28/3,740.55 = 738.35/x
  3. Step 3: Cross multiply
    2,493.28x = 3,740.55 × 738.35
  4. Step 4: Simplify right side
    2,493.28x = 2,761,849.66
  5. Step 5: Solve for x
    x = 2,761,849.66/2,493.28
  6. Step 6: Final answer
    x = 1,107.72

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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.