Home / 3,928.25-5,896.57-1,589.78

Finding the Fourth Proportional to 3,928.25, 5,896.57 and 1,589.78

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Solution

The fourth proportional to 3,928.25, 5,896.57 and 1,589.78 is: 2,386.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.25 : 5,896.57 = 1,589.78 : x
  2. Step 2: Convert to fraction form
    3,928.25/5,896.57 = 1,589.78/x
  3. Step 3: Cross multiply
    3,928.25x = 5,896.57 × 1,589.78
  4. Step 4: Simplify right side
    3,928.25x = 9,374,249.05
  5. Step 5: Solve for x
    x = 9,374,249.05/3,928.25
  6. Step 6: Final answer
    x = 2,386.37

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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.