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Finding the Third Proportional to 2,072 and 3,169

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Solution

The third proportional to 2,072 and 3,169 is: 4,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072 : 3,169 = 3,169 : x
  2. Step 2: Convert to fraction form
    2,072/3,169 = 3,169/x
  3. Step 3: Cross multiply
    2,072x = 3,169 × 3,169
  4. Step 4: Simplify right side
    2,072x = 10,042,561
  5. Step 5: Solve for x
    x = 10,042,561/2,072
  6. Step 6: Final answer
    x = 4,846.80

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.