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Finding the Third Proportional to 3,209 and 4,817

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Solution

The third proportional to 3,209 and 4,817 is: 7,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209 : 4,817 = 4,817 : x
  2. Step 2: Convert to fraction form
    3,209/4,817 = 4,817/x
  3. Step 3: Cross multiply
    3,209x = 4,817 × 4,817
  4. Step 4: Simplify right side
    3,209x = 23,203,489
  5. Step 5: Solve for x
    x = 23,203,489/3,209
  6. Step 6: Final answer
    x = 7,230.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.