Home / 5,286.12-7,964.49-4,786.44

Finding the Fourth Proportional to 5,286.12, 7,964.49 and 4,786.44

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Solution

The fourth proportional to 5,286.12, 7,964.49 and 4,786.44 is: 7,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.12 : 7,964.49 = 4,786.44 : x
  2. Step 2: Convert to fraction form
    5,286.12/7,964.49 = 4,786.44/x
  3. Step 3: Cross multiply
    5,286.12x = 7,964.49 × 4,786.44
  4. Step 4: Simplify right side
    5,286.12x = 38,121,553.52
  5. Step 5: Solve for x
    x = 38,121,553.52/5,286.12
  6. Step 6: Final answer
    x = 7,211.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.