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Finding the Third Proportional to 5,110 and 6,809

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Solution

The third proportional to 5,110 and 6,809 is: 9,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110 : 6,809 = 6,809 : x
  2. Step 2: Convert to fraction form
    5,110/6,809 = 6,809/x
  3. Step 3: Cross multiply
    5,110x = 6,809 × 6,809
  4. Step 4: Simplify right side
    5,110x = 46,362,481
  5. Step 5: Solve for x
    x = 46,362,481/5,110
  6. Step 6: Final answer
    x = 9,072.89

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.