Home / 5,879.39-8,107.85-3,969.41

Finding the Fourth Proportional to 5,879.39, 8,107.85 and 3,969.41

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Solution

The fourth proportional to 5,879.39, 8,107.85 and 3,969.41 is: 5,473.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.39 : 8,107.85 = 3,969.41 : x
  2. Step 2: Convert to fraction form
    5,879.39/8,107.85 = 3,969.41/x
  3. Step 3: Cross multiply
    5,879.39x = 8,107.85 × 3,969.41
  4. Step 4: Simplify right side
    5,879.39x = 32,183,327.92
  5. Step 5: Solve for x
    x = 32,183,327.92/5,879.39
  6. Step 6: Final answer
    x = 5,473.93

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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.