Home / 5,198.88-7,796.28-1,911.12

Finding the Fourth Proportional to 5,198.88, 7,796.28 and 1,911.12

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Solution

The fourth proportional to 5,198.88, 7,796.28 and 1,911.12 is: 2,865.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.88 : 7,796.28 = 1,911.12 : x
  2. Step 2: Convert to fraction form
    5,198.88/7,796.28 = 1,911.12/x
  3. Step 3: Cross multiply
    5,198.88x = 7,796.28 × 1,911.12
  4. Step 4: Simplify right side
    5,198.88x = 14,899,626.63
  5. Step 5: Solve for x
    x = 14,899,626.63/5,198.88
  6. Step 6: Final answer
    x = 2,865.93

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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.