Home / 2,222.85-3,067.49-1,228.13

Finding the Fourth Proportional to 2,222.85, 3,067.49 and 1,228.13

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Solution

The fourth proportional to 2,222.85, 3,067.49 and 1,228.13 is: 1,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.85 : 3,067.49 = 1,228.13 : x
  2. Step 2: Convert to fraction form
    2,222.85/3,067.49 = 1,228.13/x
  3. Step 3: Cross multiply
    2,222.85x = 3,067.49 × 1,228.13
  4. Step 4: Simplify right side
    2,222.85x = 3,767,255.02
  5. Step 5: Solve for x
    x = 3,767,255.02/2,222.85
  6. Step 6: Final answer
    x = 1,694.79

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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.