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Finding the Third Proportional to 3,620 and 6,565

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Solution

The third proportional to 3,620 and 6,565 is: 11,905.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620 : 6,565 = 6,565 : x
  2. Step 2: Convert to fraction form
    3,620/6,565 = 6,565/x
  3. Step 3: Cross multiply
    3,620x = 6,565 × 6,565
  4. Step 4: Simplify right side
    3,620x = 43,099,225
  5. Step 5: Solve for x
    x = 43,099,225/3,620
  6. Step 6: Final answer
    x = 11,905.86

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.