Home / 2,136.33-3,203.73-749.30

Finding the Fourth Proportional to 2,136.33, 3,203.73 and 749.30

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Solution

The fourth proportional to 2,136.33, 3,203.73 and 749.30 is: 1,123.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.33 : 3,203.73 = 749.30 : x
  2. Step 2: Convert to fraction form
    2,136.33/3,203.73 = 749.30/x
  3. Step 3: Cross multiply
    2,136.33x = 3,203.73 × 749.30
  4. Step 4: Simplify right side
    2,136.33x = 2,400,538.87
  5. Step 5: Solve for x
    x = 2,400,538.87/2,136.33
  6. Step 6: Final answer
    x = 1,123.67

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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.