Home / 3,879.10-5,352.78-2,306.92

Finding the Fourth Proportional to 3,879.10, 5,352.78 and 2,306.92

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Solution

The fourth proportional to 3,879.10, 5,352.78 and 2,306.92 is: 3,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.10 : 5,352.78 = 2,306.92 : x
  2. Step 2: Convert to fraction form
    3,879.10/5,352.78 = 2,306.92/x
  3. Step 3: Cross multiply
    3,879.10x = 5,352.78 × 2,306.92
  4. Step 4: Simplify right side
    3,879.10x = 12,348,435.24
  5. Step 5: Solve for x
    x = 12,348,435.24/3,879.10
  6. Step 6: Final answer
    x = 3,183.32

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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.