Home / 3,759.89-5,189.13-2,187.99

Finding the Fourth Proportional to 3,759.89, 5,189.13 and 2,187.99

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Solution

The fourth proportional to 3,759.89, 5,189.13 and 2,187.99 is: 3,019.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.89 : 5,189.13 = 2,187.99 : x
  2. Step 2: Convert to fraction form
    3,759.89/5,189.13 = 2,187.99/x
  3. Step 3: Cross multiply
    3,759.89x = 5,189.13 × 2,187.99
  4. Step 4: Simplify right side
    3,759.89x = 11,353,764.55
  5. Step 5: Solve for x
    x = 11,353,764.55/3,759.89
  6. Step 6: Final answer
    x = 3,019.71

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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.