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Finding the Third Proportional to 489 and 962

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Solution

The third proportional to 489 and 962 is: 1,892.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    489 : 962 = 962 : x
  2. Step 2: Convert to fraction form
    489/962 = 962/x
  3. Step 3: Cross multiply
    489x = 962 × 962
  4. Step 4: Simplify right side
    489x = 925,444
  5. Step 5: Solve for x
    x = 925,444/489
  6. Step 6: Final answer
    x = 1,892.52

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.