Home / 1,906.91-2,631.56-1,067.68

Finding the Fourth Proportional to 1,906.91, 2,631.56 and 1,067.68

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Solution

The fourth proportional to 1,906.91, 2,631.56 and 1,067.68 is: 1,473.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.91 : 2,631.56 = 1,067.68 : x
  2. Step 2: Convert to fraction form
    1,906.91/2,631.56 = 1,067.68/x
  3. Step 3: Cross multiply
    1,906.91x = 2,631.56 × 1,067.68
  4. Step 4: Simplify right side
    1,906.91x = 2,809,661.93
  5. Step 5: Solve for x
    x = 2,809,661.93/1,906.91
  6. Step 6: Final answer
    x = 1,473.41

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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.