Home / 3,162.22-4,742.61-1,213.99

Finding the Fourth Proportional to 3,162.22, 4,742.61 and 1,213.99

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Solution

The fourth proportional to 3,162.22, 4,742.61 and 1,213.99 is: 1,820.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.22 : 4,742.61 = 1,213.99 : x
  2. Step 2: Convert to fraction form
    3,162.22/4,742.61 = 1,213.99/x
  3. Step 3: Cross multiply
    3,162.22x = 4,742.61 × 1,213.99
  4. Step 4: Simplify right side
    3,162.22x = 5,757,481.11
  5. Step 5: Solve for x
    x = 5,757,481.11/3,162.22
  6. Step 6: Final answer
    x = 1,820.71

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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.