Home / 3,179.36-4,760.83-2,195.21

Finding the Fourth Proportional to 3,179.36, 4,760.83 and 2,195.21

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Solution

The fourth proportional to 3,179.36, 4,760.83 and 2,195.21 is: 3,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.36 : 4,760.83 = 2,195.21 : x
  2. Step 2: Convert to fraction form
    3,179.36/4,760.83 = 2,195.21/x
  3. Step 3: Cross multiply
    3,179.36x = 4,760.83 × 2,195.21
  4. Step 4: Simplify right side
    3,179.36x = 10,451,021.62
  5. Step 5: Solve for x
    x = 10,451,021.62/3,179.36
  6. Step 6: Final answer
    x = 3,287.15

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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.