Home / 4,188.13-5,781.75-3,241.78

Finding the Fourth Proportional to 4,188.13, 5,781.75 and 3,241.78

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Solution

The fourth proportional to 4,188.13, 5,781.75 and 3,241.78 is: 4,475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.13 : 5,781.75 = 3,241.78 : x
  2. Step 2: Convert to fraction form
    4,188.13/5,781.75 = 3,241.78/x
  3. Step 3: Cross multiply
    4,188.13x = 5,781.75 × 3,241.78
  4. Step 4: Simplify right side
    4,188.13x = 18,743,161.52
  5. Step 5: Solve for x
    x = 18,743,161.52/4,188.13
  6. Step 6: Final answer
    x = 4,475.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.