Home / 3,160.91-4,742.18-1,213.27

Finding the Fourth Proportional to 3,160.91, 4,742.18 and 1,213.27

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Solution

The fourth proportional to 3,160.91, 4,742.18 and 1,213.27 is: 1,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.91 : 4,742.18 = 1,213.27 : x
  2. Step 2: Convert to fraction form
    3,160.91/4,742.18 = 1,213.27/x
  3. Step 3: Cross multiply
    3,160.91x = 4,742.18 × 1,213.27
  4. Step 4: Simplify right side
    3,160.91x = 5,753,514.95
  5. Step 5: Solve for x
    x = 5,753,514.95/3,160.91
  6. Step 6: Final answer
    x = 1,820.21

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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.