Home / 2,299.20-3,179.04-2,007.60

Finding the Fourth Proportional to 2,299.20, 3,179.04 and 2,007.60

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Solution

The fourth proportional to 2,299.20, 3,179.04 and 2,007.60 is: 2,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.20 : 3,179.04 = 2,007.60 : x
  2. Step 2: Convert to fraction form
    2,299.20/3,179.04 = 2,007.60/x
  3. Step 3: Cross multiply
    2,299.20x = 3,179.04 × 2,007.60
  4. Step 4: Simplify right side
    2,299.20x = 6,382,240.70
  5. Step 5: Solve for x
    x = 6,382,240.70/2,299.20
  6. Step 6: Final answer
    x = 2,775.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.