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Finding the Third Proportional to 2,565 and 5,559

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Solution

The third proportional to 2,565 and 5,559 is: 12,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565 : 5,559 = 5,559 : x
  2. Step 2: Convert to fraction form
    2,565/5,559 = 5,559/x
  3. Step 3: Cross multiply
    2,565x = 5,559 × 5,559
  4. Step 4: Simplify right side
    2,565x = 30,902,481
  5. Step 5: Solve for x
    x = 30,902,481/2,565
  6. Step 6: Final answer
    x = 12,047.75

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.