Home / 3,604.70-5,406.26-1,382.78

Finding the Fourth Proportional to 3,604.70, 5,406.26 and 1,382.78

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Solution

The fourth proportional to 3,604.70, 5,406.26 and 1,382.78 is: 2,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.70 : 5,406.26 = 1,382.78 : x
  2. Step 2: Convert to fraction form
    3,604.70/5,406.26 = 1,382.78/x
  3. Step 3: Cross multiply
    3,604.70x = 5,406.26 × 1,382.78
  4. Step 4: Simplify right side
    3,604.70x = 7,475,634.26
  5. Step 5: Solve for x
    x = 7,475,634.26/3,604.70
  6. Step 6: Final answer
    x = 2,073.86

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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.