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Finding the Third Proportional to 2,555 and 2,795

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Solution

The third proportional to 2,555 and 2,795 is: 3,057.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555 : 2,795 = 2,795 : x
  2. Step 2: Convert to fraction form
    2,555/2,795 = 2,795/x
  3. Step 3: Cross multiply
    2,555x = 2,795 × 2,795
  4. Step 4: Simplify right side
    2,555x = 7,812,025
  5. Step 5: Solve for x
    x = 7,812,025/2,555
  6. Step 6: Final answer
    x = 3,057.54

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.