Home / 5,286.12-7,923.78-3,440.94

Finding the Fourth Proportional to 5,286.12, 7,923.78 and 3,440.94

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Solution

The fourth proportional to 5,286.12, 7,923.78 and 3,440.94 is: 5,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.12 : 7,923.78 = 3,440.94 : x
  2. Step 2: Convert to fraction form
    5,286.12/7,923.78 = 3,440.94/x
  3. Step 3: Cross multiply
    5,286.12x = 7,923.78 × 3,440.94
  4. Step 4: Simplify right side
    5,286.12x = 27,265,251.55
  5. Step 5: Solve for x
    x = 27,265,251.55/5,286.12
  6. Step 6: Final answer
    x = 5,157.89

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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.