Home / 7,400.70-11,092.05-3,231.90

Finding the Fourth Proportional to 7,400.70, 11,092.05 and 3,231.90

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Solution

The fourth proportional to 7,400.70, 11,092.05 and 3,231.90 is: 4,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.70 : 11,092.05 = 3,231.90 : x
  2. Step 2: Convert to fraction form
    7,400.70/11,092.05 = 3,231.90/x
  3. Step 3: Cross multiply
    7,400.70x = 11,092.05 × 3,231.90
  4. Step 4: Simplify right side
    7,400.70x = 35,848,396.40
  5. Step 5: Solve for x
    x = 35,848,396.40/7,400.70
  6. Step 6: Final answer
    x = 4,843.92

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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.