Home / 1,906.97-2,631.78-1,067.75

Finding the Fourth Proportional to 1,906.97, 2,631.78 and 1,067.75

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Solution

The fourth proportional to 1,906.97, 2,631.78 and 1,067.75 is: 1,473.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.97 : 2,631.78 = 1,067.75 : x
  2. Step 2: Convert to fraction form
    1,906.97/2,631.78 = 1,067.75/x
  3. Step 3: Cross multiply
    1,906.97x = 2,631.78 × 1,067.75
  4. Step 4: Simplify right side
    1,906.97x = 2,810,083.10
  5. Step 5: Solve for x
    x = 2,810,083.10/1,906.97
  6. Step 6: Final answer
    x = 1,473.59

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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.