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Finding the Third Proportional to 1,505 and 2,402

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Solution

The third proportional to 1,505 and 2,402 is: 3,833.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505 : 2,402 = 2,402 : x
  2. Step 2: Convert to fraction form
    1,505/2,402 = 2,402/x
  3. Step 3: Cross multiply
    1,505x = 2,402 × 2,402
  4. Step 4: Simplify right side
    1,505x = 5,769,604
  5. Step 5: Solve for x
    x = 5,769,604/1,505
  6. Step 6: Final answer
    x = 3,833.62

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.