Home / 2,418.29-3,629.26-1,120.67

Finding the Fourth Proportional to 2,418.29, 3,629.26 and 1,120.67

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Solution

The fourth proportional to 2,418.29, 3,629.26 and 1,120.67 is: 1,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.29 : 3,629.26 = 1,120.67 : x
  2. Step 2: Convert to fraction form
    2,418.29/3,629.26 = 1,120.67/x
  3. Step 3: Cross multiply
    2,418.29x = 3,629.26 × 1,120.67
  4. Step 4: Simplify right side
    2,418.29x = 4,067,202.80
  5. Step 5: Solve for x
    x = 4,067,202.80/2,418.29
  6. Step 6: Final answer
    x = 1,681.85

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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.