Home / 3,771.30-5,206.46-2,279.60

Finding the Fourth Proportional to 3,771.30, 5,206.46 and 2,279.60

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Solution

The fourth proportional to 3,771.30, 5,206.46 and 2,279.60 is: 3,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.30 : 5,206.46 = 2,279.60 : x
  2. Step 2: Convert to fraction form
    3,771.30/5,206.46 = 2,279.60/x
  3. Step 3: Cross multiply
    3,771.30x = 5,206.46 × 2,279.60
  4. Step 4: Simplify right side
    3,771.30x = 11,868,608.79
  5. Step 5: Solve for x
    x = 11,868,608.79/3,771.30
  6. Step 6: Final answer
    x = 3,147.09

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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.