Home / 3,189.90-4,786.25-1,241.43

Finding the Fourth Proportional to 3,189.90, 4,786.25 and 1,241.43

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Solution

The fourth proportional to 3,189.90, 4,786.25 and 1,241.43 is: 1,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.90 : 4,786.25 = 1,241.43 : x
  2. Step 2: Convert to fraction form
    3,189.90/4,786.25 = 1,241.43/x
  3. Step 3: Cross multiply
    3,189.90x = 4,786.25 × 1,241.43
  4. Step 4: Simplify right side
    3,189.90x = 5,941,788.13
  5. Step 5: Solve for x
    x = 5,941,788.13/3,189.90
  6. Step 6: Final answer
    x = 1,862.69

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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.