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Finding the Third Proportional to 859.13 and 1,382.81

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Solution

The third proportional to 859.13 and 1,382.81 is: 2,225.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    859.13 : 1,382.81 = 1,382.81 : x
  2. Step 2: Convert to fraction form
    859.13/1,382.81 = 1,382.81/x
  3. Step 3: Cross multiply
    859.13x = 1,382.81 × 1,382.81
  4. Step 4: Simplify right side
    859.13x = 1,912,170.41
  5. Step 5: Solve for x
    x = 1,912,170.41/859.13
  6. Step 6: Final answer
    x = 2,225.72

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.