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Finding the Third Proportional to 681.19 and 1,382.06

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Solution

The third proportional to 681.19 and 1,382.06 is: 2,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.19 : 1,382.06 = 1,382.06 : x
  2. Step 2: Convert to fraction form
    681.19/1,382.06 = 1,382.06/x
  3. Step 3: Cross multiply
    681.19x = 1,382.06 × 1,382.06
  4. Step 4: Simplify right side
    681.19x = 1,910,096.75
  5. Step 5: Solve for x
    x = 1,910,096.75/681.19
  6. Step 6: Final answer
    x = 2,804.07

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.