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Finding the Third Proportional to 3,546.50 and 7,715

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Solution

The third proportional to 3,546.50 and 7,715 is: 16,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.50 : 7,715 = 7,715 : x
  2. Step 2: Convert to fraction form
    3,546.50/7,715 = 7,715/x
  3. Step 3: Cross multiply
    3,546.50x = 7,715 × 7,715
  4. Step 4: Simplify right side
    3,546.50x = 59,521,225
  5. Step 5: Solve for x
    x = 59,521,225/3,546.50
  6. Step 6: Final answer
    x = 16,783.09

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.