Home / 3,404.20-5,105.56-1,213.08

Finding the Fourth Proportional to 3,404.20, 5,105.56 and 1,213.08

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Solution

The fourth proportional to 3,404.20, 5,105.56 and 1,213.08 is: 1,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.20 : 5,105.56 = 1,213.08 : x
  2. Step 2: Convert to fraction form
    3,404.20/5,105.56 = 1,213.08/x
  3. Step 3: Cross multiply
    3,404.20x = 5,105.56 × 1,213.08
  4. Step 4: Simplify right side
    3,404.20x = 6,193,452.72
  5. Step 5: Solve for x
    x = 6,193,452.72/3,404.20
  6. Step 6: Final answer
    x = 1,819.36

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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.