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Finding the Fourth Proportional to 3,447.48, 5,169.96 and 1,255.56

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Solution

The fourth proportional to 3,447.48, 5,169.96 and 1,255.56 is: 1,882.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.48 : 5,169.96 = 1,255.56 : x
  2. Step 2: Convert to fraction form
    3,447.48/5,169.96 = 1,255.56/x
  3. Step 3: Cross multiply
    3,447.48x = 5,169.96 × 1,255.56
  4. Step 4: Simplify right side
    3,447.48x = 6,491,194.98
  5. Step 5: Solve for x
    x = 6,491,194.98/3,447.48
  6. Step 6: Final answer
    x = 1,882.88

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1.5x scale

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.