Home / 4,182.05-5,771.26-2,855.72

Finding the Fourth Proportional to 4,182.05, 5,771.26 and 2,855.72

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Solution

The fourth proportional to 4,182.05, 5,771.26 and 2,855.72 is: 3,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,182.05 : 5,771.26 = 2,855.72 : x
  2. Step 2: Convert to fraction form
    4,182.05/5,771.26 = 2,855.72/x
  3. Step 3: Cross multiply
    4,182.05x = 5,771.26 × 2,855.72
  4. Step 4: Simplify right side
    4,182.05x = 16,481,102.61
  5. Step 5: Solve for x
    x = 16,481,102.61/4,182.05
  6. Step 6: Final answer
    x = 3,940.91

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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.