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Finding the Third Proportional to 3,930.75 and 8,180.44

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Solution

The third proportional to 3,930.75 and 8,180.44 is: 17,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.75 : 8,180.44 = 8,180.44 : x
  2. Step 2: Convert to fraction form
    3,930.75/8,180.44 = 8,180.44/x
  3. Step 3: Cross multiply
    3,930.75x = 8,180.44 × 8,180.44
  4. Step 4: Simplify right side
    3,930.75x = 66,919,557.69
  5. Step 5: Solve for x
    x = 66,919,557.69/3,930.75
  6. Step 6: Final answer
    x = 17,024.63

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.