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Finding the Third Proportional to 3,856.78 and 8,250.19

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Solution

The third proportional to 3,856.78 and 8,250.19 is: 17,648.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.78 : 8,250.19 = 8,250.19 : x
  2. Step 2: Convert to fraction form
    3,856.78/8,250.19 = 8,250.19/x
  3. Step 3: Cross multiply
    3,856.78x = 8,250.19 × 8,250.19
  4. Step 4: Simplify right side
    3,856.78x = 68,065,593.79
  5. Step 5: Solve for x
    x = 68,065,593.79/3,856.78
  6. Step 6: Final answer
    x = 17,648.29

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.