Home / 2,222.76-3,067.36-1,228

Finding the Fourth Proportional to 2,222.76, 3,067.36 and 1,228

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Solution

The fourth proportional to 2,222.76, 3,067.36 and 1,228 is: 1,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.76 : 3,067.36 = 1,228 : x
  2. Step 2: Convert to fraction form
    2,222.76/3,067.36 = 1,228/x
  3. Step 3: Cross multiply
    2,222.76x = 3,067.36 × 1,228
  4. Step 4: Simplify right side
    2,222.76x = 3,766,718.08
  5. Step 5: Solve for x
    x = 3,766,718.08/2,222.76
  6. Step 6: Final answer
    x = 1,694.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.