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Finding the Third Proportional to 1,729 and 4,165

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Solution

The third proportional to 1,729 and 4,165 is: 10,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729 : 4,165 = 4,165 : x
  2. Step 2: Convert to fraction form
    1,729/4,165 = 4,165/x
  3. Step 3: Cross multiply
    1,729x = 4,165 × 4,165
  4. Step 4: Simplify right side
    1,729x = 17,347,225
  5. Step 5: Solve for x
    x = 17,347,225/1,729
  6. Step 6: Final answer
    x = 10,033.10

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.