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Finding the Third Proportional to 3,778 and 8,005

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Solution

The third proportional to 3,778 and 8,005 is: 16,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778 : 8,005 = 8,005 : x
  2. Step 2: Convert to fraction form
    3,778/8,005 = 8,005/x
  3. Step 3: Cross multiply
    3,778x = 8,005 × 8,005
  4. Step 4: Simplify right side
    3,778x = 64,080,025
  5. Step 5: Solve for x
    x = 64,080,025/3,778
  6. Step 6: Final answer
    x = 16,961.36

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.