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Finding the Third Proportional to 1,818.50 and 2,736.75

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Solution

The third proportional to 1,818.50 and 2,736.75 is: 4,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.50 : 2,736.75 = 2,736.75 : x
  2. Step 2: Convert to fraction form
    1,818.50/2,736.75 = 2,736.75/x
  3. Step 3: Cross multiply
    1,818.50x = 2,736.75 × 2,736.75
  4. Step 4: Simplify right side
    1,818.50x = 7,489,800.56
  5. Step 5: Solve for x
    x = 7,489,800.56/1,818.50
  6. Step 6: Final answer
    x = 4,118.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.