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Finding the Third Proportional to 1,749.50 and 3,769

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Solution

The third proportional to 1,749.50 and 3,769 is: 8,119.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.50 : 3,769 = 3,769 : x
  2. Step 2: Convert to fraction form
    1,749.50/3,769 = 3,769/x
  3. Step 3: Cross multiply
    1,749.50x = 3,769 × 3,769
  4. Step 4: Simplify right side
    1,749.50x = 14,205,361
  5. Step 5: Solve for x
    x = 14,205,361/1,749.50
  6. Step 6: Final answer
    x = 8,119.67

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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.