Home / 3,890.26-5,835.39-3,311.98

Finding the Fourth Proportional to 3,890.26, 5,835.39 and 3,311.98

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Solution

The fourth proportional to 3,890.26, 5,835.39 and 3,311.98 is: 4,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.26 : 5,835.39 = 3,311.98 : x
  2. Step 2: Convert to fraction form
    3,890.26/5,835.39 = 3,311.98/x
  3. Step 3: Cross multiply
    3,890.26x = 5,835.39 × 3,311.98
  4. Step 4: Simplify right side
    3,890.26x = 19,326,694.97
  5. Step 5: Solve for x
    x = 19,326,694.97/3,890.26
  6. Step 6: Final answer
    x = 4,967.97

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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.