Home / 5,212.27-7,194.20-3,221.63

Finding the Fourth Proportional to 5,212.27, 7,194.20 and 3,221.63

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Solution

The fourth proportional to 5,212.27, 7,194.20 and 3,221.63 is: 4,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.27 : 7,194.20 = 3,221.63 : x
  2. Step 2: Convert to fraction form
    5,212.27/7,194.20 = 3,221.63/x
  3. Step 3: Cross multiply
    5,212.27x = 7,194.20 × 3,221.63
  4. Step 4: Simplify right side
    5,212.27x = 23,176,998.47
  5. Step 5: Solve for x
    x = 23,176,998.47/5,212.27
  6. Step 6: Final answer
    x = 4,446.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.