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Finding the Third Proportional to 3,279 and 3,585

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Solution

The third proportional to 3,279 and 3,585 is: 3,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279 : 3,585 = 3,585 : x
  2. Step 2: Convert to fraction form
    3,279/3,585 = 3,585/x
  3. Step 3: Cross multiply
    3,279x = 3,585 × 3,585
  4. Step 4: Simplify right side
    3,279x = 12,852,225
  5. Step 5: Solve for x
    x = 12,852,225/3,279
  6. Step 6: Final answer
    x = 3,919.56

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.