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Finding the Third Proportional to 3,460 and 6,638

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Solution

The third proportional to 3,460 and 6,638 is: 12,734.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460 : 6,638 = 6,638 : x
  2. Step 2: Convert to fraction form
    3,460/6,638 = 6,638/x
  3. Step 3: Cross multiply
    3,460x = 6,638 × 6,638
  4. Step 4: Simplify right side
    3,460x = 44,063,044
  5. Step 5: Solve for x
    x = 44,063,044/3,460
  6. Step 6: Final answer
    x = 12,734.98

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.