Home / 5,199.43-7,799.18-2,079.70

Finding the Fourth Proportional to 5,199.43, 7,799.18 and 2,079.70

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Solution

The fourth proportional to 5,199.43, 7,799.18 and 2,079.70 is: 3,119.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.43 : 7,799.18 = 2,079.70 : x
  2. Step 2: Convert to fraction form
    5,199.43/7,799.18 = 2,079.70/x
  3. Step 3: Cross multiply
    5,199.43x = 7,799.18 × 2,079.70
  4. Step 4: Simplify right side
    5,199.43x = 16,219,954.65
  5. Step 5: Solve for x
    x = 16,219,954.65/5,199.43
  6. Step 6: Final answer
    x = 3,119.56

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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.