Home / 2,800.80-4,201.72-1,414.19

Finding the Fourth Proportional to 2,800.80, 4,201.72 and 1,414.19

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Solution

The fourth proportional to 2,800.80, 4,201.72 and 1,414.19 is: 2,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.80 : 4,201.72 = 1,414.19 : x
  2. Step 2: Convert to fraction form
    2,800.80/4,201.72 = 1,414.19/x
  3. Step 3: Cross multiply
    2,800.80x = 4,201.72 × 1,414.19
  4. Step 4: Simplify right side
    2,800.80x = 5,942,037.38
  5. Step 5: Solve for x
    x = 5,942,037.38/2,800.80
  6. Step 6: Final answer
    x = 2,121.55

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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.