Home / 5,418.09-8,121.38-2,299.77

Finding the Fourth Proportional to 5,418.09, 8,121.38 and 2,299.77

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Solution

The fourth proportional to 5,418.09, 8,121.38 and 2,299.77 is: 3,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.09 : 8,121.38 = 2,299.77 : x
  2. Step 2: Convert to fraction form
    5,418.09/8,121.38 = 2,299.77/x
  3. Step 3: Cross multiply
    5,418.09x = 8,121.38 × 2,299.77
  4. Step 4: Simplify right side
    5,418.09x = 18,677,294.58
  5. Step 5: Solve for x
    x = 18,677,294.58/5,418.09
  6. Step 6: Final answer
    x = 3,447.21

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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.