Home / 3,801.69-5,247.59-2,229.75

Finding the Fourth Proportional to 3,801.69, 5,247.59 and 2,229.75

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Solution

The fourth proportional to 3,801.69, 5,247.59 and 2,229.75 is: 3,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.69 : 5,247.59 = 2,229.75 : x
  2. Step 2: Convert to fraction form
    3,801.69/5,247.59 = 2,229.75/x
  3. Step 3: Cross multiply
    3,801.69x = 5,247.59 × 2,229.75
  4. Step 4: Simplify right side
    3,801.69x = 11,700,813.80
  5. Step 5: Solve for x
    x = 11,700,813.80/3,801.69
  6. Step 6: Final answer
    x = 3,077.79

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Half scale
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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.