Home / 2,136.11-3,204.63-749.39

Finding the Fourth Proportional to 2,136.11, 3,204.63 and 749.39

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Solution

The fourth proportional to 2,136.11, 3,204.63 and 749.39 is: 1,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.11 : 3,204.63 = 749.39 : x
  2. Step 2: Convert to fraction form
    2,136.11/3,204.63 = 749.39/x
  3. Step 3: Cross multiply
    2,136.11x = 3,204.63 × 749.39
  4. Step 4: Simplify right side
    2,136.11x = 2,401,501.65
  5. Step 5: Solve for x
    x = 2,401,501.65/2,136.11
  6. Step 6: Final answer
    x = 1,124.24

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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.