Home / 2,148.87-3,222.39-1,224.86

Finding the Fourth Proportional to 2,148.87, 3,222.39 and 1,224.86

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Solution

The fourth proportional to 2,148.87, 3,222.39 and 1,224.86 is: 1,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.87 : 3,222.39 = 1,224.86 : x
  2. Step 2: Convert to fraction form
    2,148.87/3,222.39 = 1,224.86/x
  3. Step 3: Cross multiply
    2,148.87x = 3,222.39 × 1,224.86
  4. Step 4: Simplify right side
    2,148.87x = 3,946,976.62
  5. Step 5: Solve for x
    x = 3,946,976.62/2,148.87
  6. Step 6: Final answer
    x = 1,836.77

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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.