Home / 2,799.80-4,199.68-2,738.30

Finding the Fourth Proportional to 2,799.80, 4,199.68 and 2,738.30

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Solution

The fourth proportional to 2,799.80, 4,199.68 and 2,738.30 is: 4,107.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.80 : 4,199.68 = 2,738.30 : x
  2. Step 2: Convert to fraction form
    2,799.80/4,199.68 = 2,738.30/x
  3. Step 3: Cross multiply
    2,799.80x = 4,199.68 × 2,738.30
  4. Step 4: Simplify right side
    2,799.80x = 11,499,983.74
  5. Step 5: Solve for x
    x = 11,499,983.74/2,799.80
  6. Step 6: Final answer
    x = 4,107.43

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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.