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Finding the Third Proportional to 3,885 and 8,770.50

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Solution

The third proportional to 3,885 and 8,770.50 is: 19,799.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885 : 8,770.50 = 8,770.50 : x
  2. Step 2: Convert to fraction form
    3,885/8,770.50 = 8,770.50/x
  3. Step 3: Cross multiply
    3,885x = 8,770.50 × 8,770.50
  4. Step 4: Simplify right side
    3,885x = 76,921,670.25
  5. Step 5: Solve for x
    x = 76,921,670.25/3,885
  6. Step 6: Final answer
    x = 19,799.66

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.