Home / 1,080.14-1,619.39-531.97

Finding the Fourth Proportional to 1,080.14, 1,619.39 and 531.97

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Solution

The fourth proportional to 1,080.14, 1,619.39 and 531.97 is: 797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080.14 : 1,619.39 = 531.97 : x
  2. Step 2: Convert to fraction form
    1,080.14/1,619.39 = 531.97/x
  3. Step 3: Cross multiply
    1,080.14x = 1,619.39 × 531.97
  4. Step 4: Simplify right side
    1,080.14x = 861,464.18
  5. Step 5: Solve for x
    x = 861,464.18/1,080.14
  6. Step 6: Final answer
    x = 797.55

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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.