Home / 3,576.38-5,364.38-979.30

Finding the Fourth Proportional to 3,576.38, 5,364.38 and 979.30

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Solution

The fourth proportional to 3,576.38, 5,364.38 and 979.30 is: 1,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.38 : 5,364.38 = 979.30 : x
  2. Step 2: Convert to fraction form
    3,576.38/5,364.38 = 979.30/x
  3. Step 3: Cross multiply
    3,576.38x = 5,364.38 × 979.30
  4. Step 4: Simplify right side
    3,576.38x = 5,253,337.33
  5. Step 5: Solve for x
    x = 5,253,337.33/3,576.38
  6. Step 6: Final answer
    x = 1,468.90

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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.