Home / 2,119.46-3,179.94-949.37

Finding the Fourth Proportional to 2,119.46, 3,179.94 and 949.37

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Solution

The fourth proportional to 2,119.46, 3,179.94 and 949.37 is: 1,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.46 : 3,179.94 = 949.37 : x
  2. Step 2: Convert to fraction form
    2,119.46/3,179.94 = 949.37/x
  3. Step 3: Cross multiply
    2,119.46x = 3,179.94 × 949.37
  4. Step 4: Simplify right side
    2,119.46x = 3,018,918.99
  5. Step 5: Solve for x
    x = 3,018,918.99/2,119.46
  6. Step 6: Final answer
    x = 1,424.38

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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.