Home / 3,576.12-5,364.20-979.44

Finding the Fourth Proportional to 3,576.12, 5,364.20 and 979.44

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Solution

The fourth proportional to 3,576.12, 5,364.20 and 979.44 is: 1,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.12 : 5,364.20 = 979.44 : x
  2. Step 2: Convert to fraction form
    3,576.12/5,364.20 = 979.44/x
  3. Step 3: Cross multiply
    3,576.12x = 5,364.20 × 979.44
  4. Step 4: Simplify right side
    3,576.12x = 5,253,912.05
  5. Step 5: Solve for x
    x = 5,253,912.05/3,576.12
  6. Step 6: Final answer
    x = 1,469.17

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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.