Home / 3,180.96-4,389.18-2,003.60

Finding the Fourth Proportional to 3,180.96, 4,389.18 and 2,003.60

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Solution

The fourth proportional to 3,180.96, 4,389.18 and 2,003.60 is: 2,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.96 : 4,389.18 = 2,003.60 : x
  2. Step 2: Convert to fraction form
    3,180.96/4,389.18 = 2,003.60/x
  3. Step 3: Cross multiply
    3,180.96x = 4,389.18 × 2,003.60
  4. Step 4: Simplify right side
    3,180.96x = 8,794,161.05
  5. Step 5: Solve for x
    x = 8,794,161.05/3,180.96
  6. Step 6: Final answer
    x = 2,764.62

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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.