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Finding the Third Proportional to 1,512 and 1,692

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Solution

The third proportional to 1,512 and 1,692 is: 1,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512 : 1,692 = 1,692 : x
  2. Step 2: Convert to fraction form
    1,512/1,692 = 1,692/x
  3. Step 3: Cross multiply
    1,512x = 1,692 × 1,692
  4. Step 4: Simplify right side
    1,512x = 2,862,864
  5. Step 5: Solve for x
    x = 2,862,864/1,512
  6. Step 6: Final answer
    x = 1,893.43

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.