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Finding the Third Proportional to 1,077 and 1,647.75

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Solution

The third proportional to 1,077 and 1,647.75 is: 2,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077 : 1,647.75 = 1,647.75 : x
  2. Step 2: Convert to fraction form
    1,077/1,647.75 = 1,647.75/x
  3. Step 3: Cross multiply
    1,077x = 1,647.75 × 1,647.75
  4. Step 4: Simplify right side
    1,077x = 2,715,080.06
  5. Step 5: Solve for x
    x = 2,715,080.06/1,077
  6. Step 6: Final answer
    x = 2,520.97

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.