Home / 3,540.62-4,885.91-2,125.15

Finding the Fourth Proportional to 3,540.62, 4,885.91 and 2,125.15

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Solution

The fourth proportional to 3,540.62, 4,885.91 and 2,125.15 is: 2,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.62 : 4,885.91 = 2,125.15 : x
  2. Step 2: Convert to fraction form
    3,540.62/4,885.91 = 2,125.15/x
  3. Step 3: Cross multiply
    3,540.62x = 4,885.91 × 2,125.15
  4. Step 4: Simplify right side
    3,540.62x = 10,383,268.80
  5. Step 5: Solve for x
    x = 10,383,268.80/3,540.62
  6. Step 6: Final answer
    x = 2,932.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.