Home / 3,578.42-5,367.90-1,238.33

Finding the Fourth Proportional to 3,578.42, 5,367.90 and 1,238.33

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Solution

The fourth proportional to 3,578.42, 5,367.90 and 1,238.33 is: 1,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.42 : 5,367.90 = 1,238.33 : x
  2. Step 2: Convert to fraction form
    3,578.42/5,367.90 = 1,238.33/x
  3. Step 3: Cross multiply
    3,578.42x = 5,367.90 × 1,238.33
  4. Step 4: Simplify right side
    3,578.42x = 6,647,231.61
  5. Step 5: Solve for x
    x = 6,647,231.61/3,578.42
  6. Step 6: Final answer
    x = 1,857.59

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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.