Home / 2,136.27-3,198.99-1,442.19

Finding the Fourth Proportional to 2,136.27, 3,198.99 and 1,442.19

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Solution

The fourth proportional to 2,136.27, 3,198.99 and 1,442.19 is: 2,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.27 : 3,198.99 = 1,442.19 : x
  2. Step 2: Convert to fraction form
    2,136.27/3,198.99 = 1,442.19/x
  3. Step 3: Cross multiply
    2,136.27x = 3,198.99 × 1,442.19
  4. Step 4: Simplify right side
    2,136.27x = 4,613,551.39
  5. Step 5: Solve for x
    x = 4,613,551.39/2,136.27
  6. Step 6: Final answer
    x = 2,159.63

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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.