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Finding the Fourth Proportional to 2,194.53, 3,292.28 and 807.97

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Solution

The fourth proportional to 2,194.53, 3,292.28 and 807.97 is: 1,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.53 : 3,292.28 = 807.97 : x
  2. Step 2: Convert to fraction form
    2,194.53/3,292.28 = 807.97/x
  3. Step 3: Cross multiply
    2,194.53x = 3,292.28 × 807.97
  4. Step 4: Simplify right side
    2,194.53x = 2,660,063.47
  5. Step 5: Solve for x
    x = 2,660,063.47/2,194.53
  6. Step 6: Final answer
    x = 1,212.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.