Home / 3,391.44-4,680.24-1,879.20

Finding the Fourth Proportional to 3,391.44, 4,680.24 and 1,879.20

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Solution

The fourth proportional to 3,391.44, 4,680.24 and 1,879.20 is: 2,593.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.44 : 4,680.24 = 1,879.20 : x
  2. Step 2: Convert to fraction form
    3,391.44/4,680.24 = 1,879.20/x
  3. Step 3: Cross multiply
    3,391.44x = 4,680.24 × 1,879.20
  4. Step 4: Simplify right side
    3,391.44x = 8,795,107.01
  5. Step 5: Solve for x
    x = 8,795,107.01/3,391.44
  6. Step 6: Final answer
    x = 2,593.33

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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.