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Finding the Third Proportional to 1,778.50 and 3,941

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Solution

The third proportional to 1,778.50 and 3,941 is: 8,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.50 : 3,941 = 3,941 : x
  2. Step 2: Convert to fraction form
    1,778.50/3,941 = 3,941/x
  3. Step 3: Cross multiply
    1,778.50x = 3,941 × 3,941
  4. Step 4: Simplify right side
    1,778.50x = 15,531,481
  5. Step 5: Solve for x
    x = 15,531,481/1,778.50
  6. Step 6: Final answer
    x = 8,732.91

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.