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Finding the Fourth Proportional to 6,286.87, 8,679.34 and 4,300.34

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Solution

The fourth proportional to 6,286.87, 8,679.34 and 4,300.34 is: 5,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.87 : 8,679.34 = 4,300.34 : x
  2. Step 2: Convert to fraction form
    6,286.87/8,679.34 = 4,300.34/x
  3. Step 3: Cross multiply
    6,286.87x = 8,679.34 × 4,300.34
  4. Step 4: Simplify right side
    6,286.87x = 37,324,112.98
  5. Step 5: Solve for x
    x = 37,324,112.98/6,286.87
  6. Step 6: Final answer
    x = 5,936.84

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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.