Home / 2,418.58-3,626.79-1,120.42

Finding the Fourth Proportional to 2,418.58, 3,626.79 and 1,120.42

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Solution

The fourth proportional to 2,418.58, 3,626.79 and 1,120.42 is: 1,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.58 : 3,626.79 = 1,120.42 : x
  2. Step 2: Convert to fraction form
    2,418.58/3,626.79 = 1,120.42/x
  3. Step 3: Cross multiply
    2,418.58x = 3,626.79 × 1,120.42
  4. Step 4: Simplify right side
    2,418.58x = 4,063,528.05
  5. Step 5: Solve for x
    x = 4,063,528.05/2,418.58
  6. Step 6: Final answer
    x = 1,680.13

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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.