Home / 3,912.20-5,399.35-2,519.00

Finding the Fourth Proportional to 3,912.20, 5,399.35 and 2,519.00

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Solution

The fourth proportional to 3,912.20, 5,399.35 and 2,519.00 is: 3,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.20 : 5,399.35 = 2,519.00 : x
  2. Step 2: Convert to fraction form
    3,912.20/5,399.35 = 2,519.00/x
  3. Step 3: Cross multiply
    3,912.20x = 5,399.35 × 2,519.00
  4. Step 4: Simplify right side
    3,912.20x = 13,600,929.36
  5. Step 5: Solve for x
    x = 13,600,929.36/3,912.20
  6. Step 6: Final answer
    x = 3,476.55

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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.