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Finding the Fourth Proportional to 5,928.39, 8,891.28 and 3,813.66

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Solution

The fourth proportional to 5,928.39, 8,891.28 and 3,813.66 is: 5,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,928.39 : 8,891.28 = 3,813.66 : x
  2. Step 2: Convert to fraction form
    5,928.39/8,891.28 = 3,813.66/x
  3. Step 3: Cross multiply
    5,928.39x = 8,891.28 × 3,813.66
  4. Step 4: Simplify right side
    5,928.39x = 33,908,318.88
  5. Step 5: Solve for x
    x = 33,908,318.88/5,928.39
  6. Step 6: Final answer
    x = 5,719.65

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1.5x scale

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.