Home / 7,198.16-10,784.09-5,218.88

Finding the Fourth Proportional to 7,198.16, 10,784.09 and 5,218.88

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Solution

The fourth proportional to 7,198.16, 10,784.09 and 5,218.88 is: 7,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.16 : 10,784.09 = 5,218.88 : x
  2. Step 2: Convert to fraction form
    7,198.16/10,784.09 = 5,218.88/x
  3. Step 3: Cross multiply
    7,198.16x = 10,784.09 × 5,218.88
  4. Step 4: Simplify right side
    7,198.16x = 56,280,791.60
  5. Step 5: Solve for x
    x = 56,280,791.60/7,198.16
  6. Step 6: Final answer
    x = 7,818.78

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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.