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Finding the Third Proportional to 3,189.38 and 8,672.06

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Solution

The third proportional to 3,189.38 and 8,672.06 is: 23,579.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.38 : 8,672.06 = 8,672.06 : x
  2. Step 2: Convert to fraction form
    3,189.38/8,672.06 = 8,672.06/x
  3. Step 3: Cross multiply
    3,189.38x = 8,672.06 × 8,672.06
  4. Step 4: Simplify right side
    3,189.38x = 75,204,668.00
  5. Step 5: Solve for x
    x = 75,204,668.00/3,189.38
  6. Step 6: Final answer
    x = 23,579.75

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.