Home / 1,414.27-2,121.75-440.37

Finding the Fourth Proportional to 1,414.27, 2,121.75 and 440.37

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Solution

The fourth proportional to 1,414.27, 2,121.75 and 440.37 is: 660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.27 : 2,121.75 = 440.37 : x
  2. Step 2: Convert to fraction form
    1,414.27/2,121.75 = 440.37/x
  3. Step 3: Cross multiply
    1,414.27x = 2,121.75 × 440.37
  4. Step 4: Simplify right side
    1,414.27x = 934,355.05
  5. Step 5: Solve for x
    x = 934,355.05/1,414.27
  6. Step 6: Final answer
    x = 660.66

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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.