Home / 5,286.82-7,295.70-2,928.94

Finding the Fourth Proportional to 5,286.82, 7,295.70 and 2,928.94

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Solution

The fourth proportional to 5,286.82, 7,295.70 and 2,928.94 is: 4,041.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.82 : 7,295.70 = 2,928.94 : x
  2. Step 2: Convert to fraction form
    5,286.82/7,295.70 = 2,928.94/x
  3. Step 3: Cross multiply
    5,286.82x = 7,295.70 × 2,928.94
  4. Step 4: Simplify right side
    5,286.82x = 21,368,667.56
  5. Step 5: Solve for x
    x = 21,368,667.56/5,286.82
  6. Step 6: Final answer
    x = 4,041.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.