Home / 2,022.59-2,791.45-1,138.57

Finding the Fourth Proportional to 2,022.59, 2,791.45 and 1,138.57

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Solution

The fourth proportional to 2,022.59, 2,791.45 and 1,138.57 is: 1,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.59 : 2,791.45 = 1,138.57 : x
  2. Step 2: Convert to fraction form
    2,022.59/2,791.45 = 1,138.57/x
  3. Step 3: Cross multiply
    2,022.59x = 2,791.45 × 1,138.57
  4. Step 4: Simplify right side
    2,022.59x = 3,178,255.67
  5. Step 5: Solve for x
    x = 3,178,255.67/2,022.59
  6. Step 6: Final answer
    x = 1,571.38

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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.