Home / 2,489.22-3,731.31-1,189.26

Finding the Fourth Proportional to 2,489.22, 3,731.31 and 1,189.26

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Solution

The fourth proportional to 2,489.22, 3,731.31 and 1,189.26 is: 1,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.22 : 3,731.31 = 1,189.26 : x
  2. Step 2: Convert to fraction form
    2,489.22/3,731.31 = 1,189.26/x
  3. Step 3: Cross multiply
    2,489.22x = 3,731.31 × 1,189.26
  4. Step 4: Simplify right side
    2,489.22x = 4,437,497.73
  5. Step 5: Solve for x
    x = 4,437,497.73/2,489.22
  6. Step 6: Final answer
    x = 1,782.69

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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.