Home / 3,213.27-4,819.41-1,105.21

Finding the Fourth Proportional to 3,213.27, 4,819.41 and 1,105.21

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Solution

The fourth proportional to 3,213.27, 4,819.41 and 1,105.21 is: 1,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.27 : 4,819.41 = 1,105.21 : x
  2. Step 2: Convert to fraction form
    3,213.27/4,819.41 = 1,105.21/x
  3. Step 3: Cross multiply
    3,213.27x = 4,819.41 × 1,105.21
  4. Step 4: Simplify right side
    3,213.27x = 5,326,484.31
  5. Step 5: Solve for x
    x = 5,326,484.31/3,213.27
  6. Step 6: Final answer
    x = 1,657.65

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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.