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Finding the Third Proportional to 2,839 and 4,976

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Solution

The third proportional to 2,839 and 4,976 is: 8,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839 : 4,976 = 4,976 : x
  2. Step 2: Convert to fraction form
    2,839/4,976 = 4,976/x
  3. Step 3: Cross multiply
    2,839x = 4,976 × 4,976
  4. Step 4: Simplify right side
    2,839x = 24,760,576
  5. Step 5: Solve for x
    x = 24,760,576/2,839
  6. Step 6: Final answer
    x = 8,721.58

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.