Home / 3,561.25-5,342.70-1,252.75

Finding the Fourth Proportional to 3,561.25, 5,342.70 and 1,252.75

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Solution

The fourth proportional to 3,561.25, 5,342.70 and 1,252.75 is: 1,879.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.25 : 5,342.70 = 1,252.75 : x
  2. Step 2: Convert to fraction form
    3,561.25/5,342.70 = 1,252.75/x
  3. Step 3: Cross multiply
    3,561.25x = 5,342.70 × 1,252.75
  4. Step 4: Simplify right side
    3,561.25x = 6,693,067.43
  5. Step 5: Solve for x
    x = 6,693,067.43/3,561.25
  6. Step 6: Final answer
    x = 1,879.42

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1.5x scale

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.