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Finding the Third Proportional to 3,145 and 6,634

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Solution

The third proportional to 3,145 and 6,634 is: 13,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145 : 6,634 = 6,634 : x
  2. Step 2: Convert to fraction form
    3,145/6,634 = 6,634/x
  3. Step 3: Cross multiply
    3,145x = 6,634 × 6,634
  4. Step 4: Simplify right side
    3,145x = 44,009,956
  5. Step 5: Solve for x
    x = 44,009,956/3,145
  6. Step 6: Final answer
    x = 13,993.63

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.