Home / 3,229.32-4,458.60-2,879.40

Finding the Fourth Proportional to 3,229.32, 4,458.60 and 2,879.40

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Solution

The fourth proportional to 3,229.32, 4,458.60 and 2,879.40 is: 3,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.32 : 4,458.60 = 2,879.40 : x
  2. Step 2: Convert to fraction form
    3,229.32/4,458.60 = 2,879.40/x
  3. Step 3: Cross multiply
    3,229.32x = 4,458.60 × 2,879.40
  4. Step 4: Simplify right side
    3,229.32x = 12,838,092.84
  5. Step 5: Solve for x
    x = 12,838,092.84/3,229.32
  6. Step 6: Final answer
    x = 3,975.48

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Half scale
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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.