Home / 2,136.10-3,198.38-1,107.94

Finding the Fourth Proportional to 2,136.10, 3,198.38 and 1,107.94

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Solution

The fourth proportional to 2,136.10, 3,198.38 and 1,107.94 is: 1,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.10 : 3,198.38 = 1,107.94 : x
  2. Step 2: Convert to fraction form
    2,136.10/3,198.38 = 1,107.94/x
  3. Step 3: Cross multiply
    2,136.10x = 3,198.38 × 1,107.94
  4. Step 4: Simplify right side
    2,136.10x = 3,543,613.14
  5. Step 5: Solve for x
    x = 3,543,613.14/2,136.10
  6. Step 6: Final answer
    x = 1,658.92

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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.