Home / 3,399.20-5,103.60-2,103.20

Finding the Fourth Proportional to 3,399.20, 5,103.60 and 2,103.20

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Solution

The fourth proportional to 3,399.20, 5,103.60 and 2,103.20 is: 3,157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.20 : 5,103.60 = 2,103.20 : x
  2. Step 2: Convert to fraction form
    3,399.20/5,103.60 = 2,103.20/x
  3. Step 3: Cross multiply
    3,399.20x = 5,103.60 × 2,103.20
  4. Step 4: Simplify right side
    3,399.20x = 10,733,891.52
  5. Step 5: Solve for x
    x = 10,733,891.52/3,399.20
  6. Step 6: Final answer
    x = 3,157.77

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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.