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Finding the Third Proportional to 3,156 and 6,710

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Solution

The third proportional to 3,156 and 6,710 is: 14,266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156 : 6,710 = 6,710 : x
  2. Step 2: Convert to fraction form
    3,156/6,710 = 6,710/x
  3. Step 3: Cross multiply
    3,156x = 6,710 × 6,710
  4. Step 4: Simplify right side
    3,156x = 45,024,100
  5. Step 5: Solve for x
    x = 45,024,100/3,156
  6. Step 6: Final answer
    x = 14,266.19

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.