Home / 3,906.23-5,855.78-1,439.33

Finding the Fourth Proportional to 3,906.23, 5,855.78 and 1,439.33

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Solution

The fourth proportional to 3,906.23, 5,855.78 and 1,439.33 is: 2,157.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.23 : 5,855.78 = 1,439.33 : x
  2. Step 2: Convert to fraction form
    3,906.23/5,855.78 = 1,439.33/x
  3. Step 3: Cross multiply
    3,906.23x = 5,855.78 × 1,439.33
  4. Step 4: Simplify right side
    3,906.23x = 8,428,374.15
  5. Step 5: Solve for x
    x = 8,428,374.15/3,906.23
  6. Step 6: Final answer
    x = 2,157.68

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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.