Home / 2,136.23-3,202.40-748.82

Finding the Fourth Proportional to 2,136.23, 3,202.40 and 748.82

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Solution

The fourth proportional to 2,136.23, 3,202.40 and 748.82 is: 1,122.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.23 : 3,202.40 = 748.82 : x
  2. Step 2: Convert to fraction form
    2,136.23/3,202.40 = 748.82/x
  3. Step 3: Cross multiply
    2,136.23x = 3,202.40 × 748.82
  4. Step 4: Simplify right side
    2,136.23x = 2,398,007.03
  5. Step 5: Solve for x
    x = 2,398,007.03/2,136.23
  6. Step 6: Final answer
    x = 1,122.54

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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.