Home / 2,761.82-4,136.85-2,211.02

Finding the Fourth Proportional to 2,761.82, 4,136.85 and 2,211.02

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Solution

The fourth proportional to 2,761.82, 4,136.85 and 2,211.02 is: 3,311.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.82 : 4,136.85 = 2,211.02 : x
  2. Step 2: Convert to fraction form
    2,761.82/4,136.85 = 2,211.02/x
  3. Step 3: Cross multiply
    2,761.82x = 4,136.85 × 2,211.02
  4. Step 4: Simplify right side
    2,761.82x = 9,146,658.09
  5. Step 5: Solve for x
    x = 9,146,658.09/2,761.82
  6. Step 6: Final answer
    x = 3,311.82

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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.