Home / 1,891.87-2,831.82-1,067.69

Finding the Fourth Proportional to 1,891.87, 2,831.82 and 1,067.69

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Solution

The fourth proportional to 1,891.87, 2,831.82 and 1,067.69 is: 1,598.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.87 : 2,831.82 = 1,067.69 : x
  2. Step 2: Convert to fraction form
    1,891.87/2,831.82 = 1,067.69/x
  3. Step 3: Cross multiply
    1,891.87x = 2,831.82 × 1,067.69
  4. Step 4: Simplify right side
    1,891.87x = 3,023,508.97
  5. Step 5: Solve for x
    x = 3,023,508.97/1,891.87
  6. Step 6: Final answer
    x = 1,598.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.