Home / 2,149.08-3,220.72-1,367.84

Finding the Fourth Proportional to 2,149.08, 3,220.72 and 1,367.84

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Solution

The fourth proportional to 2,149.08, 3,220.72 and 1,367.84 is: 2,049.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.08 : 3,220.72 = 1,367.84 : x
  2. Step 2: Convert to fraction form
    2,149.08/3,220.72 = 1,367.84/x
  3. Step 3: Cross multiply
    2,149.08x = 3,220.72 × 1,367.84
  4. Step 4: Simplify right side
    2,149.08x = 4,405,429.64
  5. Step 5: Solve for x
    x = 4,405,429.64/2,149.08
  6. Step 6: Final answer
    x = 2,049.91

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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.