Home / 3,942.55-5,908.26-2,188.33

Finding the Fourth Proportional to 3,942.55, 5,908.26 and 2,188.33

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Solution

The fourth proportional to 3,942.55, 5,908.26 and 2,188.33 is: 3,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.55 : 5,908.26 = 2,188.33 : x
  2. Step 2: Convert to fraction form
    3,942.55/5,908.26 = 2,188.33/x
  3. Step 3: Cross multiply
    3,942.55x = 5,908.26 × 2,188.33
  4. Step 4: Simplify right side
    3,942.55x = 12,929,222.61
  5. Step 5: Solve for x
    x = 12,929,222.61/3,942.55
  6. Step 6: Final answer
    x = 3,279.41

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1.5x scale

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.