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Finding the Third Proportional to 3,608 and 8,318

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Solution

The third proportional to 3,608 and 8,318 is: 19,176.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608 : 8,318 = 8,318 : x
  2. Step 2: Convert to fraction form
    3,608/8,318 = 8,318/x
  3. Step 3: Cross multiply
    3,608x = 8,318 × 8,318
  4. Step 4: Simplify right side
    3,608x = 69,189,124
  5. Step 5: Solve for x
    x = 69,189,124/3,608
  6. Step 6: Final answer
    x = 19,176.59

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.