Home / 3,620.54-5,431.37-1,540.55

Finding the Fourth Proportional to 3,620.54, 5,431.37 and 1,540.55

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Solution

The fourth proportional to 3,620.54, 5,431.37 and 1,540.55 is: 2,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.54 : 5,431.37 = 1,540.55 : x
  2. Step 2: Convert to fraction form
    3,620.54/5,431.37 = 1,540.55/x
  3. Step 3: Cross multiply
    3,620.54x = 5,431.37 × 1,540.55
  4. Step 4: Simplify right side
    3,620.54x = 8,367,302.93
  5. Step 5: Solve for x
    x = 8,367,302.93/3,620.54
  6. Step 6: Final answer
    x = 2,311.06

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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.