Home / 2,380.63-3,571.56-1,394.28

Finding the Fourth Proportional to 2,380.63, 3,571.56 and 1,394.28

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Solution

The fourth proportional to 2,380.63, 3,571.56 and 1,394.28 is: 2,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.63 : 3,571.56 = 1,394.28 : x
  2. Step 2: Convert to fraction form
    2,380.63/3,571.56 = 1,394.28/x
  3. Step 3: Cross multiply
    2,380.63x = 3,571.56 × 1,394.28
  4. Step 4: Simplify right side
    2,380.63x = 4,979,754.68
  5. Step 5: Solve for x
    x = 4,979,754.68/2,380.63
  6. Step 6: Final answer
    x = 2,091.78

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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.