Home / 3,094.20-4,639.66-2,120.60

Finding the Fourth Proportional to 3,094.20, 4,639.66 and 2,120.60

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Solution

The fourth proportional to 3,094.20, 4,639.66 and 2,120.60 is: 3,179.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,094.20 : 4,639.66 = 2,120.60 : x
  2. Step 2: Convert to fraction form
    3,094.20/4,639.66 = 2,120.60/x
  3. Step 3: Cross multiply
    3,094.20x = 4,639.66 × 2,120.60
  4. Step 4: Simplify right side
    3,094.20x = 9,838,863.00
  5. Step 5: Solve for x
    x = 9,838,863.00/3,094.20
  6. Step 6: Final answer
    x = 3,179.78

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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.