Home / 5,212.14-7,192.76-2,854.43

Finding the Fourth Proportional to 5,212.14, 7,192.76 and 2,854.43

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Solution

The fourth proportional to 5,212.14, 7,192.76 and 2,854.43 is: 3,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.14 : 7,192.76 = 2,854.43 : x
  2. Step 2: Convert to fraction form
    5,212.14/7,192.76 = 2,854.43/x
  3. Step 3: Cross multiply
    5,212.14x = 7,192.76 × 2,854.43
  4. Step 4: Simplify right side
    5,212.14x = 20,531,229.93
  5. Step 5: Solve for x
    x = 20,531,229.93/5,212.14
  6. Step 6: Final answer
    x = 3,939.12

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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.