Home / 2,418.30-3,620.94-1,261.62

Finding the Fourth Proportional to 2,418.30, 3,620.94 and 1,261.62

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Solution

The fourth proportional to 2,418.30, 3,620.94 and 1,261.62 is: 1,889.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.30 : 3,620.94 = 1,261.62 : x
  2. Step 2: Convert to fraction form
    2,418.30/3,620.94 = 1,261.62/x
  3. Step 3: Cross multiply
    2,418.30x = 3,620.94 × 1,261.62
  4. Step 4: Simplify right side
    2,418.30x = 4,568,245.59
  5. Step 5: Solve for x
    x = 4,568,245.59/2,418.30
  6. Step 6: Final answer
    x = 1,889.03

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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.