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Finding the Third Proportional to 1,811 and 2,751

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Solution

The third proportional to 1,811 and 2,751 is: 4,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811 : 2,751 = 2,751 : x
  2. Step 2: Convert to fraction form
    1,811/2,751 = 2,751/x
  3. Step 3: Cross multiply
    1,811x = 2,751 × 2,751
  4. Step 4: Simplify right side
    1,811x = 7,568,001
  5. Step 5: Solve for x
    x = 7,568,001/1,811
  6. Step 6: Final answer
    x = 4,178.91

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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.