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Finding the Third Proportional to 2,791 and 6,613

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Solution

The third proportional to 2,791 and 6,613 is: 15,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791 : 6,613 = 6,613 : x
  2. Step 2: Convert to fraction form
    2,791/6,613 = 6,613/x
  3. Step 3: Cross multiply
    2,791x = 6,613 × 6,613
  4. Step 4: Simplify right side
    2,791x = 43,731,769
  5. Step 5: Solve for x
    x = 43,731,769/2,791
  6. Step 6: Final answer
    x = 15,668.85

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.