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Finding the Third Proportional to 3,121 and 7,367

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Solution

The third proportional to 3,121 and 7,367 is: 17,389.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121 : 7,367 = 7,367 : x
  2. Step 2: Convert to fraction form
    3,121/7,367 = 7,367/x
  3. Step 3: Cross multiply
    3,121x = 7,367 × 7,367
  4. Step 4: Simplify right side
    3,121x = 54,272,689
  5. Step 5: Solve for x
    x = 54,272,689/3,121
  6. Step 6: Final answer
    x = 17,389.52

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.