Home / 3,311.88-4,960.52-2,211.08

Finding the Fourth Proportional to 3,311.88, 4,960.52 and 2,211.08

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Solution

The fourth proportional to 3,311.88, 4,960.52 and 2,211.08 is: 3,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.88 : 4,960.52 = 2,211.08 : x
  2. Step 2: Convert to fraction form
    3,311.88/4,960.52 = 2,211.08/x
  3. Step 3: Cross multiply
    3,311.88x = 4,960.52 × 2,211.08
  4. Step 4: Simplify right side
    3,311.88x = 10,968,106.56
  5. Step 5: Solve for x
    x = 10,968,106.56/3,311.88
  6. Step 6: Final answer
    x = 3,311.75

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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.