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Finding the Third Proportional to 3,511 and 7,657

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Solution

The third proportional to 3,511 and 7,657 is: 16,698.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511 : 7,657 = 7,657 : x
  2. Step 2: Convert to fraction form
    3,511/7,657 = 7,657/x
  3. Step 3: Cross multiply
    3,511x = 7,657 × 7,657
  4. Step 4: Simplify right side
    3,511x = 58,629,649
  5. Step 5: Solve for x
    x = 58,629,649/3,511
  6. Step 6: Final answer
    x = 16,698.85

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.