Home / 2,422.45-3,631.41-1,190.89

Finding the Fourth Proportional to 2,422.45, 3,631.41 and 1,190.89

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Solution

The fourth proportional to 2,422.45, 3,631.41 and 1,190.89 is: 1,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.45 : 3,631.41 = 1,190.89 : x
  2. Step 2: Convert to fraction form
    2,422.45/3,631.41 = 1,190.89/x
  3. Step 3: Cross multiply
    2,422.45x = 3,631.41 × 1,190.89
  4. Step 4: Simplify right side
    2,422.45x = 4,324,609.85
  5. Step 5: Solve for x
    x = 4,324,609.85/2,422.45
  6. Step 6: Final answer
    x = 1,785.22

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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.