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Finding the Fourth Proportional to 6,286.28, 8,667.06 and 3,927.56

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Solution

The fourth proportional to 6,286.28, 8,667.06 and 3,927.56 is: 5,415.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.28 : 8,667.06 = 3,927.56 : x
  2. Step 2: Convert to fraction form
    6,286.28/8,667.06 = 3,927.56/x
  3. Step 3: Cross multiply
    6,286.28x = 8,667.06 × 3,927.56
  4. Step 4: Simplify right side
    6,286.28x = 34,040,398.17
  5. Step 5: Solve for x
    x = 34,040,398.17/6,286.28
  6. Step 6: Final answer
    x = 5,415.03

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1.5x scale

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.