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Finding the Third Proportional to 3,578 and 8,306

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Solution

The third proportional to 3,578 and 8,306 is: 19,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578 : 8,306 = 8,306 : x
  2. Step 2: Convert to fraction form
    3,578/8,306 = 8,306/x
  3. Step 3: Cross multiply
    3,578x = 8,306 × 8,306
  4. Step 4: Simplify right side
    3,578x = 68,989,636
  5. Step 5: Solve for x
    x = 68,989,636/3,578
  6. Step 6: Final answer
    x = 19,281.62

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.