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Finding the Third Proportional to 3,756 and 4,161

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Solution

The third proportional to 3,756 and 4,161 is: 4,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756 : 4,161 = 4,161 : x
  2. Step 2: Convert to fraction form
    3,756/4,161 = 4,161/x
  3. Step 3: Cross multiply
    3,756x = 4,161 × 4,161
  4. Step 4: Simplify right side
    3,756x = 17,313,921
  5. Step 5: Solve for x
    x = 17,313,921/3,756
  6. Step 6: Final answer
    x = 4,609.67

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.