Home / 3,418.29-5,127.78-1,227.87

Finding the Fourth Proportional to 3,418.29, 5,127.78 and 1,227.87

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Solution

The fourth proportional to 3,418.29, 5,127.78 and 1,227.87 is: 1,841.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.29 : 5,127.78 = 1,227.87 : x
  2. Step 2: Convert to fraction form
    3,418.29/5,127.78 = 1,227.87/x
  3. Step 3: Cross multiply
    3,418.29x = 5,127.78 × 1,227.87
  4. Step 4: Simplify right side
    3,418.29x = 6,296,247.23
  5. Step 5: Solve for x
    x = 6,296,247.23/3,418.29
  6. Step 6: Final answer
    x = 1,841.93

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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.