Home / 2,022.91-2,791.87-1,138.88

Finding the Fourth Proportional to 2,022.91, 2,791.87 and 1,138.88

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Solution

The fourth proportional to 2,022.91, 2,791.87 and 1,138.88 is: 1,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.91 : 2,791.87 = 1,138.88 : x
  2. Step 2: Convert to fraction form
    2,022.91/2,791.87 = 1,138.88/x
  3. Step 3: Cross multiply
    2,022.91x = 2,791.87 × 1,138.88
  4. Step 4: Simplify right side
    2,022.91x = 3,179,604.91
  5. Step 5: Solve for x
    x = 3,179,604.91/2,022.91
  6. Step 6: Final answer
    x = 1,571.80

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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.