Home / 5,197.37-7,172.25-2,839.56

Finding the Fourth Proportional to 5,197.37, 7,172.25 and 2,839.56

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Solution

The fourth proportional to 5,197.37, 7,172.25 and 2,839.56 is: 3,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.37 : 7,172.25 = 2,839.56 : x
  2. Step 2: Convert to fraction form
    5,197.37/7,172.25 = 2,839.56/x
  3. Step 3: Cross multiply
    5,197.37x = 7,172.25 × 2,839.56
  4. Step 4: Simplify right side
    5,197.37x = 20,365,996.67
  5. Step 5: Solve for x
    x = 20,365,996.67/5,197.37
  6. Step 6: Final answer
    x = 3,918.52

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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.