Home / 1,324.26-1,825.74-1,139.73

Finding the Fourth Proportional to 1,324.26, 1,825.74 and 1,139.73

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Solution

The fourth proportional to 1,324.26, 1,825.74 and 1,139.73 is: 1,571.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.26 : 1,825.74 = 1,139.73 : x
  2. Step 2: Convert to fraction form
    1,324.26/1,825.74 = 1,139.73/x
  3. Step 3: Cross multiply
    1,324.26x = 1,825.74 × 1,139.73
  4. Step 4: Simplify right side
    1,324.26x = 2,080,850.65
  5. Step 5: Solve for x
    x = 2,080,850.65/1,324.26
  6. Step 6: Final answer
    x = 1,571.33

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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.