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Finding the Third Proportional to 3,982 and 8,768

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Solution

The third proportional to 3,982 and 8,768 is: 19,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982 : 8,768 = 8,768 : x
  2. Step 2: Convert to fraction form
    3,982/8,768 = 8,768/x
  3. Step 3: Cross multiply
    3,982x = 8,768 × 8,768
  4. Step 4: Simplify right side
    3,982x = 76,877,824
  5. Step 5: Solve for x
    x = 76,877,824/3,982
  6. Step 6: Final answer
    x = 19,306.33

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.