Home / 3,884.40-5,821.36-2,786.33

Finding the Fourth Proportional to 3,884.40, 5,821.36 and 2,786.33

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Solution

The fourth proportional to 3,884.40, 5,821.36 and 2,786.33 is: 4,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.40 : 5,821.36 = 2,786.33 : x
  2. Step 2: Convert to fraction form
    3,884.40/5,821.36 = 2,786.33/x
  3. Step 3: Cross multiply
    3,884.40x = 5,821.36 × 2,786.33
  4. Step 4: Simplify right side
    3,884.40x = 16,220,237.60
  5. Step 5: Solve for x
    x = 16,220,237.60/3,884.40
  6. Step 6: Final answer
    x = 4,175.74

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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.