Home / 5,388.39-8,085.17-2,791.32

Finding the Fourth Proportional to 5,388.39, 8,085.17 and 2,791.32

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Solution

The fourth proportional to 5,388.39, 8,085.17 and 2,791.32 is: 4,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.39 : 8,085.17 = 2,791.32 : x
  2. Step 2: Convert to fraction form
    5,388.39/8,085.17 = 2,791.32/x
  3. Step 3: Cross multiply
    5,388.39x = 8,085.17 × 2,791.32
  4. Step 4: Simplify right side
    5,388.39x = 22,568,282.77
  5. Step 5: Solve for x
    x = 22,568,282.77/5,388.39
  6. Step 6: Final answer
    x = 4,188.32

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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.