Home / 3,922.25-5,884.10-1,289.90

Finding the Fourth Proportional to 3,922.25, 5,884.10 and 1,289.90

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Solution

The fourth proportional to 3,922.25, 5,884.10 and 1,289.90 is: 1,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.25 : 5,884.10 = 1,289.90 : x
  2. Step 2: Convert to fraction form
    3,922.25/5,884.10 = 1,289.90/x
  3. Step 3: Cross multiply
    3,922.25x = 5,884.10 × 1,289.90
  4. Step 4: Simplify right side
    3,922.25x = 7,589,891.62
  5. Step 5: Solve for x
    x = 7,589,891.62/3,922.25
  6. Step 6: Final answer
    x = 1,935.09

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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.