Home / 3,843.60-5,765.37-1,211.30

Finding the Fourth Proportional to 3,843.60, 5,765.37 and 1,211.30

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Solution

The fourth proportional to 3,843.60, 5,765.37 and 1,211.30 is: 1,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.60 : 5,765.37 = 1,211.30 : x
  2. Step 2: Convert to fraction form
    3,843.60/5,765.37 = 1,211.30/x
  3. Step 3: Cross multiply
    3,843.60x = 5,765.37 × 1,211.30
  4. Step 4: Simplify right side
    3,843.60x = 6,983,592.68
  5. Step 5: Solve for x
    x = 6,983,592.68/3,843.60
  6. Step 6: Final answer
    x = 1,816.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.