Home / 4,121.40-6,195.78-3,817.02

Finding the Fourth Proportional to 4,121.40, 6,195.78 and 3,817.02

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Solution

The fourth proportional to 4,121.40, 6,195.78 and 3,817.02 is: 5,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.40 : 6,195.78 = 3,817.02 : x
  2. Step 2: Convert to fraction form
    4,121.40/6,195.78 = 3,817.02/x
  3. Step 3: Cross multiply
    4,121.40x = 6,195.78 × 3,817.02
  4. Step 4: Simplify right side
    4,121.40x = 23,649,416.18
  5. Step 5: Solve for x
    x = 23,649,416.18/4,121.40
  6. Step 6: Final answer
    x = 5,738.20

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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.