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Finding the Third Proportional to 3,578 and 7,558

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Solution

The third proportional to 3,578 and 7,558 is: 15,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578 : 7,558 = 7,558 : x
  2. Step 2: Convert to fraction form
    3,578/7,558 = 7,558/x
  3. Step 3: Cross multiply
    3,578x = 7,558 × 7,558
  4. Step 4: Simplify right side
    3,578x = 57,123,364
  5. Step 5: Solve for x
    x = 57,123,364/3,578
  6. Step 6: Final answer
    x = 15,965.17

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.