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Finding the Third Proportional to 379.13 and 872.06

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Solution

The third proportional to 379.13 and 872.06 is: 2,005.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.13 : 872.06 = 872.06 : x
  2. Step 2: Convert to fraction form
    379.13/872.06 = 872.06/x
  3. Step 3: Cross multiply
    379.13x = 872.06 × 872.06
  4. Step 4: Simplify right side
    379.13x = 760,493.00
  5. Step 5: Solve for x
    x = 760,493.00/379.13
  6. Step 6: Final answer
    x = 2,005.92

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.