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Finding the Third Proportional to 631.97 and 1,485.84

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Solution

The third proportional to 631.97 and 1,485.84 is: 3,493.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.97 : 1,485.84 = 1,485.84 : x
  2. Step 2: Convert to fraction form
    631.97/1,485.84 = 1,485.84/x
  3. Step 3: Cross multiply
    631.97x = 1,485.84 × 1,485.84
  4. Step 4: Simplify right side
    631.97x = 2,207,731.65
  5. Step 5: Solve for x
    x = 2,207,731.65/631.97
  6. Step 6: Final answer
    x = 3,493.42

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.