Home / 7,578.34-11,367.81-3,879.57

Finding the Fourth Proportional to 7,578.34, 11,367.81 and 3,879.57

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Solution

The fourth proportional to 7,578.34, 11,367.81 and 3,879.57 is: 5,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.34 : 11,367.81 = 3,879.57 : x
  2. Step 2: Convert to fraction form
    7,578.34/11,367.81 = 3,879.57/x
  3. Step 3: Cross multiply
    7,578.34x = 11,367.81 × 3,879.57
  4. Step 4: Simplify right side
    7,578.34x = 44,102,195.24
  5. Step 5: Solve for x
    x = 44,102,195.24/7,578.34
  6. Step 6: Final answer
    x = 5,819.51

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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.