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Finding the Fourth Proportional to 3,738.34, 5,609.43 and 1,659.78

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Solution

The fourth proportional to 3,738.34, 5,609.43 and 1,659.78 is: 2,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.34 : 5,609.43 = 1,659.78 : x
  2. Step 2: Convert to fraction form
    3,738.34/5,609.43 = 1,659.78/x
  3. Step 3: Cross multiply
    3,738.34x = 5,609.43 × 1,659.78
  4. Step 4: Simplify right side
    3,738.34x = 9,310,419.73
  5. Step 5: Solve for x
    x = 9,310,419.73/3,738.34
  6. Step 6: Final answer
    x = 2,490.52

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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.