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Finding the Third Proportional to 3,306.60 and 7,119.38

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Solution

The third proportional to 3,306.60 and 7,119.38 is: 15,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.60 : 7,119.38 = 7,119.38 : x
  2. Step 2: Convert to fraction form
    3,306.60/7,119.38 = 7,119.38/x
  3. Step 3: Cross multiply
    3,306.60x = 7,119.38 × 7,119.38
  4. Step 4: Simplify right side
    3,306.60x = 50,685,542.11
  5. Step 5: Solve for x
    x = 50,685,542.11/3,306.60
  6. Step 6: Final answer
    x = 15,328.58

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.