Home / 3,928.39-5,893.58-1,155.09

Finding the Fourth Proportional to 3,928.39, 5,893.58 and 1,155.09

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Solution

The fourth proportional to 3,928.39, 5,893.58 and 1,155.09 is: 1,732.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.39 : 5,893.58 = 1,155.09 : x
  2. Step 2: Convert to fraction form
    3,928.39/5,893.58 = 1,155.09/x
  3. Step 3: Cross multiply
    3,928.39x = 5,893.58 × 1,155.09
  4. Step 4: Simplify right side
    3,928.39x = 6,807,580.08
  5. Step 5: Solve for x
    x = 6,807,580.08/3,928.39
  6. Step 6: Final answer
    x = 1,732.92

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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.