Home / 3,540.72-5,311.02-1,200.22

Finding the Fourth Proportional to 3,540.72, 5,311.02 and 1,200.22

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Solution

The fourth proportional to 3,540.72, 5,311.02 and 1,200.22 is: 1,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.72 : 5,311.02 = 1,200.22 : x
  2. Step 2: Convert to fraction form
    3,540.72/5,311.02 = 1,200.22/x
  3. Step 3: Cross multiply
    3,540.72x = 5,311.02 × 1,200.22
  4. Step 4: Simplify right side
    3,540.72x = 6,374,392.42
  5. Step 5: Solve for x
    x = 6,374,392.42/3,540.72
  6. Step 6: Final answer
    x = 1,800.31

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1.5x scale

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.