Home / 5,217.68-7,201.02-2,979.88

Finding the Fourth Proportional to 5,217.68, 7,201.02 and 2,979.88

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Solution

The fourth proportional to 5,217.68, 7,201.02 and 2,979.88 is: 4,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.68 : 7,201.02 = 2,979.88 : x
  2. Step 2: Convert to fraction form
    5,217.68/7,201.02 = 2,979.88/x
  3. Step 3: Cross multiply
    5,217.68x = 7,201.02 × 2,979.88
  4. Step 4: Simplify right side
    5,217.68x = 21,458,175.48
  5. Step 5: Solve for x
    x = 21,458,175.48/5,217.68
  6. Step 6: Final answer
    x = 4,112.59

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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.