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Finding the Third Proportional to 3,140 and 6,766

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Solution

The third proportional to 3,140 and 6,766 is: 14,579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140 : 6,766 = 6,766 : x
  2. Step 2: Convert to fraction form
    3,140/6,766 = 6,766/x
  3. Step 3: Cross multiply
    3,140x = 6,766 × 6,766
  4. Step 4: Simplify right side
    3,140x = 45,778,756
  5. Step 5: Solve for x
    x = 45,778,756/3,140
  6. Step 6: Final answer
    x = 14,579.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.