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Finding the Third Proportional to 3,756 and 7,988

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Solution

The third proportional to 3,756 and 7,988 is: 16,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756 : 7,988 = 7,988 : x
  2. Step 2: Convert to fraction form
    3,756/7,988 = 7,988/x
  3. Step 3: Cross multiply
    3,756x = 7,988 × 7,988
  4. Step 4: Simplify right side
    3,756x = 63,808,144
  5. Step 5: Solve for x
    x = 63,808,144/3,756
  6. Step 6: Final answer
    x = 16,988.32

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.