Home / 2,679.62-4,021.34-1,199.21

Finding the Fourth Proportional to 2,679.62, 4,021.34 and 1,199.21

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Solution

The fourth proportional to 2,679.62, 4,021.34 and 1,199.21 is: 1,799.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.62 : 4,021.34 = 1,199.21 : x
  2. Step 2: Convert to fraction form
    2,679.62/4,021.34 = 1,199.21/x
  3. Step 3: Cross multiply
    2,679.62x = 4,021.34 × 1,199.21
  4. Step 4: Simplify right side
    2,679.62x = 4,822,405.04
  5. Step 5: Solve for x
    x = 4,822,405.04/2,679.62
  6. Step 6: Final answer
    x = 1,799.66

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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.