Home / 3,771.83-5,205.26-2,279.46

Finding the Fourth Proportional to 3,771.83, 5,205.26 and 2,279.46

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Solution

The fourth proportional to 3,771.83, 5,205.26 and 2,279.46 is: 3,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.83 : 5,205.26 = 2,279.46 : x
  2. Step 2: Convert to fraction form
    3,771.83/5,205.26 = 2,279.46/x
  3. Step 3: Cross multiply
    3,771.83x = 5,205.26 × 2,279.46
  4. Step 4: Simplify right side
    3,771.83x = 11,865,144.54
  5. Step 5: Solve for x
    x = 11,865,144.54/3,771.83
  6. Step 6: Final answer
    x = 3,145.73

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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.