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Finding the Third Proportional to 3,189 and 6,903

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Solution

The third proportional to 3,189 and 6,903 is: 14,942.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189 : 6,903 = 6,903 : x
  2. Step 2: Convert to fraction form
    3,189/6,903 = 6,903/x
  3. Step 3: Cross multiply
    3,189x = 6,903 × 6,903
  4. Step 4: Simplify right side
    3,189x = 47,651,409
  5. Step 5: Solve for x
    x = 47,651,409/3,189
  6. Step 6: Final answer
    x = 14,942.43

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.