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Finding the Third Proportional to 885 and 1,512

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Solution

The third proportional to 885 and 1,512 is: 2,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    885 : 1,512 = 1,512 : x
  2. Step 2: Convert to fraction form
    885/1,512 = 1,512/x
  3. Step 3: Cross multiply
    885x = 1,512 × 1,512
  4. Step 4: Simplify right side
    885x = 2,286,144
  5. Step 5: Solve for x
    x = 2,286,144/885
  6. Step 6: Final answer
    x = 2,583.21

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.