Home / 3,993.60-5,514.24-2,755.20

Finding the Fourth Proportional to 3,993.60, 5,514.24 and 2,755.20

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Solution

The fourth proportional to 3,993.60, 5,514.24 and 2,755.20 is: 3,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.60 : 5,514.24 = 2,755.20 : x
  2. Step 2: Convert to fraction form
    3,993.60/5,514.24 = 2,755.20/x
  3. Step 3: Cross multiply
    3,993.60x = 5,514.24 × 2,755.20
  4. Step 4: Simplify right side
    3,993.60x = 15,192,834.05
  5. Step 5: Solve for x
    x = 15,192,834.05/3,993.60
  6. Step 6: Final answer
    x = 3,804.30

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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.