Home / 5,212.82-7,193.67-2,822.78

Finding the Fourth Proportional to 5,212.82, 7,193.67 and 2,822.78

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Solution

The fourth proportional to 5,212.82, 7,193.67 and 2,822.78 is: 3,895.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.82 : 7,193.67 = 2,822.78 : x
  2. Step 2: Convert to fraction form
    5,212.82/7,193.67 = 2,822.78/x
  3. Step 3: Cross multiply
    5,212.82x = 7,193.67 × 2,822.78
  4. Step 4: Simplify right side
    5,212.82x = 20,306,147.80
  5. Step 5: Solve for x
    x = 20,306,147.80/5,212.82
  6. Step 6: Final answer
    x = 3,895.42

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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.