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Finding the Fourth Proportional to 8,452.31, 12,679.68 and 2,609.42

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Solution

The fourth proportional to 8,452.31, 12,679.68 and 2,609.42 is: 3,914.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.31 : 12,679.68 = 2,609.42 : x
  2. Step 2: Convert to fraction form
    8,452.31/12,679.68 = 2,609.42/x
  3. Step 3: Cross multiply
    8,452.31x = 12,679.68 × 2,609.42
  4. Step 4: Simplify right side
    8,452.31x = 33,086,610.59
  5. Step 5: Solve for x
    x = 33,086,610.59/8,452.31
  6. Step 6: Final answer
    x = 3,914.51

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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.