Home / 4,079.60-6,119.40-3,906.80

Finding the Fourth Proportional to 4,079.60, 6,119.40 and 3,906.80

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Solution

The fourth proportional to 4,079.60, 6,119.40 and 3,906.80 is: 5,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.60 : 6,119.40 = 3,906.80 : x
  2. Step 2: Convert to fraction form
    4,079.60/6,119.40 = 3,906.80/x
  3. Step 3: Cross multiply
    4,079.60x = 6,119.40 × 3,906.80
  4. Step 4: Simplify right side
    4,079.60x = 23,907,271.92
  5. Step 5: Solve for x
    x = 23,907,271.92/4,079.60
  6. Step 6: Final answer
    x = 5,860.20

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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.