Home / 2,221.41-3,067.43-1,382.46

Finding the Fourth Proportional to 2,221.41, 3,067.43 and 1,382.46

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Solution

The fourth proportional to 2,221.41, 3,067.43 and 1,382.46 is: 1,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.41 : 3,067.43 = 1,382.46 : x
  2. Step 2: Convert to fraction form
    2,221.41/3,067.43 = 1,382.46/x
  3. Step 3: Cross multiply
    2,221.41x = 3,067.43 × 1,382.46
  4. Step 4: Simplify right side
    2,221.41x = 4,240,599.28
  5. Step 5: Solve for x
    x = 4,240,599.28/2,221.41
  6. Step 6: Final answer
    x = 1,908.97

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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.