Home / 3,426.46-5,139.71-1,086.37

Finding the Fourth Proportional to 3,426.46, 5,139.71 and 1,086.37

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Solution

The fourth proportional to 3,426.46, 5,139.71 and 1,086.37 is: 1,629.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.46 : 5,139.71 = 1,086.37 : x
  2. Step 2: Convert to fraction form
    3,426.46/5,139.71 = 1,086.37/x
  3. Step 3: Cross multiply
    3,426.46x = 5,139.71 × 1,086.37
  4. Step 4: Simplify right side
    3,426.46x = 5,583,626.75
  5. Step 5: Solve for x
    x = 5,583,626.75/3,426.46
  6. Step 6: Final answer
    x = 1,629.56

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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.