Home / 3,418.20-5,124.22-1,226.41

Finding the Fourth Proportional to 3,418.20, 5,124.22 and 1,226.41

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Solution

The fourth proportional to 3,418.20, 5,124.22 and 1,226.41 is: 1,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.20 : 5,124.22 = 1,226.41 : x
  2. Step 2: Convert to fraction form
    3,418.20/5,124.22 = 1,226.41/x
  3. Step 3: Cross multiply
    3,418.20x = 5,124.22 × 1,226.41
  4. Step 4: Simplify right side
    3,418.20x = 6,284,394.65
  5. Step 5: Solve for x
    x = 6,284,394.65/3,418.20
  6. Step 6: Final answer
    x = 1,838.51

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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.