Home / 2,311.50-3,467.55-850.80

Finding the Fourth Proportional to 2,311.50, 3,467.55 and 850.80

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Solution

The fourth proportional to 2,311.50, 3,467.55 and 850.80 is: 1,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.50 : 3,467.55 = 850.80 : x
  2. Step 2: Convert to fraction form
    2,311.50/3,467.55 = 850.80/x
  3. Step 3: Cross multiply
    2,311.50x = 3,467.55 × 850.80
  4. Step 4: Simplify right side
    2,311.50x = 2,950,191.54
  5. Step 5: Solve for x
    x = 2,950,191.54/2,311.50
  6. Step 6: Final answer
    x = 1,276.31

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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.