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Finding the Third Proportional to 2,817 and 4,475

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Solution

The third proportional to 2,817 and 4,475 is: 7,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817 : 4,475 = 4,475 : x
  2. Step 2: Convert to fraction form
    2,817/4,475 = 4,475/x
  3. Step 3: Cross multiply
    2,817x = 4,475 × 4,475
  4. Step 4: Simplify right side
    2,817x = 20,025,625
  5. Step 5: Solve for x
    x = 20,025,625/2,817
  6. Step 6: Final answer
    x = 7,108.85

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.