Home / 5,486.25-8,229.39-1,382.25

Finding the Fourth Proportional to 5,486.25, 8,229.39 and 1,382.25

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Solution

The fourth proportional to 5,486.25, 8,229.39 and 1,382.25 is: 2,073.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.25 : 8,229.39 = 1,382.25 : x
  2. Step 2: Convert to fraction form
    5,486.25/8,229.39 = 1,382.25/x
  3. Step 3: Cross multiply
    5,486.25x = 8,229.39 × 1,382.25
  4. Step 4: Simplify right side
    5,486.25x = 11,375,074.33
  5. Step 5: Solve for x
    x = 11,375,074.33/5,486.25
  6. Step 6: Final answer
    x = 2,073.38

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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.