Home / 5,227.78-7,212.90-3,238.42

Finding the Fourth Proportional to 5,227.78, 7,212.90 and 3,238.42

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Solution

The fourth proportional to 5,227.78, 7,212.90 and 3,238.42 is: 4,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.78 : 7,212.90 = 3,238.42 : x
  2. Step 2: Convert to fraction form
    5,227.78/7,212.90 = 3,238.42/x
  3. Step 3: Cross multiply
    5,227.78x = 7,212.90 × 3,238.42
  4. Step 4: Simplify right side
    5,227.78x = 23,358,399.62
  5. Step 5: Solve for x
    x = 23,358,399.62/5,227.78
  6. Step 6: Final answer
    x = 4,468.13

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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.