Home / 3,576.20-5,378.70-3,201.80

Finding the Fourth Proportional to 3,576.20, 5,378.70 and 3,201.80

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Solution

The fourth proportional to 3,576.20, 5,378.70 and 3,201.80 is: 4,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.20 : 5,378.70 = 3,201.80 : x
  2. Step 2: Convert to fraction form
    3,576.20/5,378.70 = 3,201.80/x
  3. Step 3: Cross multiply
    3,576.20x = 5,378.70 × 3,201.80
  4. Step 4: Simplify right side
    3,576.20x = 17,221,521.66
  5. Step 5: Solve for x
    x = 17,221,521.66/3,576.20
  6. Step 6: Final answer
    x = 4,815.59

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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.