Home / 1,805.19-2,708.24-831.97

Finding the Fourth Proportional to 1,805.19, 2,708.24 and 831.97

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Solution

The fourth proportional to 1,805.19, 2,708.24 and 831.97 is: 1,248.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.19 : 2,708.24 = 831.97 : x
  2. Step 2: Convert to fraction form
    1,805.19/2,708.24 = 831.97/x
  3. Step 3: Cross multiply
    1,805.19x = 2,708.24 × 831.97
  4. Step 4: Simplify right side
    1,805.19x = 2,253,173.66
  5. Step 5: Solve for x
    x = 2,253,173.66/1,805.19
  6. Step 6: Final answer
    x = 1,248.17

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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.