Home / 1,221.06-1,831.56-296.62

Finding the Fourth Proportional to 1,221.06, 1,831.56 and 296.62

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Solution

The fourth proportional to 1,221.06, 1,831.56 and 296.62 is: 444.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221.06 : 1,831.56 = 296.62 : x
  2. Step 2: Convert to fraction form
    1,221.06/1,831.56 = 296.62/x
  3. Step 3: Cross multiply
    1,221.06x = 1,831.56 × 296.62
  4. Step 4: Simplify right side
    1,221.06x = 543,272.05
  5. Step 5: Solve for x
    x = 543,272.05/1,221.06
  6. Step 6: Final answer
    x = 444.92

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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.