Home / 2,222.85-3,067.52-1,228.19

Finding the Fourth Proportional to 2,222.85, 3,067.52 and 1,228.19

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Solution

The fourth proportional to 2,222.85, 3,067.52 and 1,228.19 is: 1,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.85 : 3,067.52 = 1,228.19 : x
  2. Step 2: Convert to fraction form
    2,222.85/3,067.52 = 1,228.19/x
  3. Step 3: Cross multiply
    2,222.85x = 3,067.52 × 1,228.19
  4. Step 4: Simplify right side
    2,222.85x = 3,767,498.92
  5. Step 5: Solve for x
    x = 3,767,498.92/2,222.85
  6. Step 6: Final answer
    x = 1,694.90

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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.