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Finding the Third Proportional to 3,123 and 3,393

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Solution

The third proportional to 3,123 and 3,393 is: 3,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123 : 3,393 = 3,393 : x
  2. Step 2: Convert to fraction form
    3,123/3,393 = 3,393/x
  3. Step 3: Cross multiply
    3,123x = 3,393 × 3,393
  4. Step 4: Simplify right side
    3,123x = 11,512,449
  5. Step 5: Solve for x
    x = 11,512,449/3,123
  6. Step 6: Final answer
    x = 3,686.34

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.