Home / 5,198.81-7,174.49-2,841.05

Finding the Fourth Proportional to 5,198.81, 7,174.49 and 2,841.05

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Solution

The fourth proportional to 5,198.81, 7,174.49 and 2,841.05 is: 3,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.81 : 7,174.49 = 2,841.05 : x
  2. Step 2: Convert to fraction form
    5,198.81/7,174.49 = 2,841.05/x
  3. Step 3: Cross multiply
    5,198.81x = 7,174.49 × 2,841.05
  4. Step 4: Simplify right side
    5,198.81x = 20,383,070.61
  5. Step 5: Solve for x
    x = 20,383,070.61/5,198.81
  6. Step 6: Final answer
    x = 3,920.72

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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.