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Finding the Third Proportional to 2,897 and 4,138

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Solution

The third proportional to 2,897 and 4,138 is: 5,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897 : 4,138 = 4,138 : x
  2. Step 2: Convert to fraction form
    2,897/4,138 = 4,138/x
  3. Step 3: Cross multiply
    2,897x = 4,138 × 4,138
  4. Step 4: Simplify right side
    2,897x = 17,123,044
  5. Step 5: Solve for x
    x = 17,123,044/2,897
  6. Step 6: Final answer
    x = 5,910.61

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.