Home / 3,183.98-4,778.87-1,625.09

Finding the Fourth Proportional to 3,183.98, 4,778.87 and 1,625.09

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Solution

The fourth proportional to 3,183.98, 4,778.87 and 1,625.09 is: 2,439.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.98 : 4,778.87 = 1,625.09 : x
  2. Step 2: Convert to fraction form
    3,183.98/4,778.87 = 1,625.09/x
  3. Step 3: Cross multiply
    3,183.98x = 4,778.87 × 1,625.09
  4. Step 4: Simplify right side
    3,183.98x = 7,766,109.86
  5. Step 5: Solve for x
    x = 7,766,109.86/3,183.98
  6. Step 6: Final answer
    x = 2,439.12

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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.