Home / 3,418.58-5,128.39-1,227.82

Finding the Fourth Proportional to 3,418.58, 5,128.39 and 1,227.82

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Solution

The fourth proportional to 3,418.58, 5,128.39 and 1,227.82 is: 1,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.58 : 5,128.39 = 1,227.82 : x
  2. Step 2: Convert to fraction form
    3,418.58/5,128.39 = 1,227.82/x
  3. Step 3: Cross multiply
    3,418.58x = 5,128.39 × 1,227.82
  4. Step 4: Simplify right side
    3,418.58x = 6,296,739.81
  5. Step 5: Solve for x
    x = 6,296,739.81/3,418.58
  6. Step 6: Final answer
    x = 1,841.92

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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.