Home / 3,418.31-5,128.68-1,197.47

Finding the Fourth Proportional to 3,418.31, 5,128.68 and 1,197.47

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Solution

The fourth proportional to 3,418.31, 5,128.68 and 1,197.47 is: 1,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.31 : 5,128.68 = 1,197.47 : x
  2. Step 2: Convert to fraction form
    3,418.31/5,128.68 = 1,197.47/x
  3. Step 3: Cross multiply
    3,418.31x = 5,128.68 × 1,197.47
  4. Step 4: Simplify right side
    3,418.31x = 6,141,414.80
  5. Step 5: Solve for x
    x = 6,141,414.80/3,418.31
  6. Step 6: Final answer
    x = 1,796.63

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1.5x scale

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.