Home / 5,480.12-8,222.24-3,290.42

Finding the Fourth Proportional to 5,480.12, 8,222.24 and 3,290.42

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Solution

The fourth proportional to 5,480.12, 8,222.24 and 3,290.42 is: 4,936.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.12 : 8,222.24 = 3,290.42 : x
  2. Step 2: Convert to fraction form
    5,480.12/8,222.24 = 3,290.42/x
  3. Step 3: Cross multiply
    5,480.12x = 8,222.24 × 3,290.42
  4. Step 4: Simplify right side
    5,480.12x = 27,054,651.72
  5. Step 5: Solve for x
    x = 27,054,651.72/5,480.12
  6. Step 6: Final answer
    x = 4,936.87

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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.