Home / 3,822.20-5,731.07-1,189.00

Finding the Fourth Proportional to 3,822.20, 5,731.07 and 1,189.00

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Solution

The fourth proportional to 3,822.20, 5,731.07 and 1,189.00 is: 1,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.20 : 5,731.07 = 1,189.00 : x
  2. Step 2: Convert to fraction form
    3,822.20/5,731.07 = 1,189.00/x
  3. Step 3: Cross multiply
    3,822.20x = 5,731.07 × 1,189.00
  4. Step 4: Simplify right side
    3,822.20x = 6,814,217.90
  5. Step 5: Solve for x
    x = 6,814,217.90/3,822.20
  6. Step 6: Final answer
    x = 1,782.80

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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.