Home / 3,540.26-5,309.80-1,200.22

Finding the Fourth Proportional to 3,540.26, 5,309.80 and 1,200.22

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Solution

The fourth proportional to 3,540.26, 5,309.80 and 1,200.22 is: 1,800.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.26 : 5,309.80 = 1,200.22 : x
  2. Step 2: Convert to fraction form
    3,540.26/5,309.80 = 1,200.22/x
  3. Step 3: Cross multiply
    3,540.26x = 5,309.80 × 1,200.22
  4. Step 4: Simplify right side
    3,540.26x = 6,372,928.16
  5. Step 5: Solve for x
    x = 6,372,928.16/3,540.26
  6. Step 6: Final answer
    x = 1,800.13

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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.