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Finding the Third Proportional to 1,791 and 2,766.38

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Solution

The third proportional to 1,791 and 2,766.38 is: 4,272.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791 : 2,766.38 = 2,766.38 : x
  2. Step 2: Convert to fraction form
    1,791/2,766.38 = 2,766.38/x
  3. Step 3: Cross multiply
    1,791x = 2,766.38 × 2,766.38
  4. Step 4: Simplify right side
    1,791x = 7,652,830.64
  5. Step 5: Solve for x
    x = 7,652,830.64/1,791
  6. Step 6: Final answer
    x = 4,272.94

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.