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Finding the Third Proportional to 633.38 and 1,392.19

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Solution

The third proportional to 633.38 and 1,392.19 is: 3,060.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.38 : 1,392.19 = 1,392.19 : x
  2. Step 2: Convert to fraction form
    633.38/1,392.19 = 1,392.19/x
  3. Step 3: Cross multiply
    633.38x = 1,392.19 × 1,392.19
  4. Step 4: Simplify right side
    633.38x = 1,938,186.04
  5. Step 5: Solve for x
    x = 1,938,186.04/633.38
  6. Step 6: Final answer
    x = 3,060.09

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.