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Finding the Third Proportional to 2,739 and 5,091

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Solution

The third proportional to 2,739 and 5,091 is: 9,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739 : 5,091 = 5,091 : x
  2. Step 2: Convert to fraction form
    2,739/5,091 = 5,091/x
  3. Step 3: Cross multiply
    2,739x = 5,091 × 5,091
  4. Step 4: Simplify right side
    2,739x = 25,918,281
  5. Step 5: Solve for x
    x = 25,918,281/2,739
  6. Step 6: Final answer
    x = 9,462.68

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.