Home / 4,879.26-7,319.70-2,280.78

Finding the Fourth Proportional to 4,879.26, 7,319.70 and 2,280.78

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Solution

The fourth proportional to 4,879.26, 7,319.70 and 2,280.78 is: 3,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.26 : 7,319.70 = 2,280.78 : x
  2. Step 2: Convert to fraction form
    4,879.26/7,319.70 = 2,280.78/x
  3. Step 3: Cross multiply
    4,879.26x = 7,319.70 × 2,280.78
  4. Step 4: Simplify right side
    4,879.26x = 16,694,625.37
  5. Step 5: Solve for x
    x = 16,694,625.37/4,879.26
  6. Step 6: Final answer
    x = 3,421.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.