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Finding the Third Proportional to 2.85 and 6.26

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Solution

The third proportional to 2.85 and 6.26 is: 13.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.85 : 6.26 = 6.26 : x
  2. Step 2: Convert to fraction form
    2.85/6.26 = 6.26/x
  3. Step 3: Cross multiply
    2.85x = 6.26 × 6.26
  4. Step 4: Simplify right side
    2.85x = 39.21
  5. Step 5: Solve for x
    x = 39.21/2.85
  6. Step 6: Final answer
    x = 13.74

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.