Home / 3,822.40-5,734.42-1,189.85

Finding the Fourth Proportional to 3,822.40, 5,734.42 and 1,189.85

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Solution

The fourth proportional to 3,822.40, 5,734.42 and 1,189.85 is: 1,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.40 : 5,734.42 = 1,189.85 : x
  2. Step 2: Convert to fraction form
    3,822.40/5,734.42 = 1,189.85/x
  3. Step 3: Cross multiply
    3,822.40x = 5,734.42 × 1,189.85
  4. Step 4: Simplify right side
    3,822.40x = 6,823,087.46
  5. Step 5: Solve for x
    x = 6,823,087.46/3,822.40
  6. Step 6: Final answer
    x = 1,785.03

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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.