Home / 2,222.75-3,067.40-1,338.59

Finding the Fourth Proportional to 2,222.75, 3,067.40 and 1,338.59

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Solution

The fourth proportional to 2,222.75, 3,067.40 and 1,338.59 is: 1,847.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.75 : 3,067.40 = 1,338.59 : x
  2. Step 2: Convert to fraction form
    2,222.75/3,067.40 = 1,338.59/x
  3. Step 3: Cross multiply
    2,222.75x = 3,067.40 × 1,338.59
  4. Step 4: Simplify right side
    2,222.75x = 4,105,990.97
  5. Step 5: Solve for x
    x = 4,105,990.97/2,222.75
  6. Step 6: Final answer
    x = 1,847.26

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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.