Home / 2,136.23-3,198.55-1,108.07

Finding the Fourth Proportional to 2,136.23, 3,198.55 and 1,108.07

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Solution

The fourth proportional to 2,136.23, 3,198.55 and 1,108.07 is: 1,659.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.23 : 3,198.55 = 1,108.07 : x
  2. Step 2: Convert to fraction form
    2,136.23/3,198.55 = 1,108.07/x
  3. Step 3: Cross multiply
    2,136.23x = 3,198.55 × 1,108.07
  4. Step 4: Simplify right side
    2,136.23x = 3,544,198.54
  5. Step 5: Solve for x
    x = 3,544,198.54/2,136.23
  6. Step 6: Final answer
    x = 1,659.09

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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.