Home / 5,144.39-7,099.29-2,786.53

Finding the Fourth Proportional to 5,144.39, 7,099.29 and 2,786.53

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Solution

The fourth proportional to 5,144.39, 7,099.29 and 2,786.53 is: 3,845.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.39 : 7,099.29 = 2,786.53 : x
  2. Step 2: Convert to fraction form
    5,144.39/7,099.29 = 2,786.53/x
  3. Step 3: Cross multiply
    5,144.39x = 7,099.29 × 2,786.53
  4. Step 4: Simplify right side
    5,144.39x = 19,782,359.85
  5. Step 5: Solve for x
    x = 19,782,359.85/5,144.39
  6. Step 6: Final answer
    x = 3,845.43

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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.