Home / 4,119.60-6,179.58-2,659.80

Finding the Fourth Proportional to 4,119.60, 6,179.58 and 2,659.80

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Solution

The fourth proportional to 4,119.60, 6,179.58 and 2,659.80 is: 3,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.60 : 6,179.58 = 2,659.80 : x
  2. Step 2: Convert to fraction form
    4,119.60/6,179.58 = 2,659.80/x
  3. Step 3: Cross multiply
    4,119.60x = 6,179.58 × 2,659.80
  4. Step 4: Simplify right side
    4,119.60x = 16,436,446.88
  5. Step 5: Solve for x
    x = 16,436,446.88/4,119.60
  6. Step 6: Final answer
    x = 3,989.82

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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.