Home / 3,654.36-5,481.37-2,928.57

Finding the Fourth Proportional to 3,654.36, 5,481.37 and 2,928.57

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Solution

The fourth proportional to 3,654.36, 5,481.37 and 2,928.57 is: 4,392.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.36 : 5,481.37 = 2,928.57 : x
  2. Step 2: Convert to fraction form
    3,654.36/5,481.37 = 2,928.57/x
  3. Step 3: Cross multiply
    3,654.36x = 5,481.37 × 2,928.57
  4. Step 4: Simplify right side
    3,654.36x = 16,052,558.85
  5. Step 5: Solve for x
    x = 16,052,558.85/3,654.36
  6. Step 6: Final answer
    x = 4,392.71

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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.