Home / 5,255.31-7,884.14-1,968.43

Finding the Fourth Proportional to 5,255.31, 7,884.14 and 1,968.43

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Solution

The fourth proportional to 5,255.31, 7,884.14 and 1,968.43 is: 2,953.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.31 : 7,884.14 = 1,968.43 : x
  2. Step 2: Convert to fraction form
    5,255.31/7,884.14 = 1,968.43/x
  3. Step 3: Cross multiply
    5,255.31x = 7,884.14 × 1,968.43
  4. Step 4: Simplify right side
    5,255.31x = 15,519,377.70
  5. Step 5: Solve for x
    x = 15,519,377.70/5,255.31
  6. Step 6: Final answer
    x = 2,953.09

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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.