Home / 3,418.24-5,128.48-1,226.56

Finding the Fourth Proportional to 3,418.24, 5,128.48 and 1,226.56

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Solution

The fourth proportional to 3,418.24, 5,128.48 and 1,226.56 is: 1,840.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.24 : 5,128.48 = 1,226.56 : x
  2. Step 2: Convert to fraction form
    3,418.24/5,128.48 = 1,226.56/x
  3. Step 3: Cross multiply
    3,418.24x = 5,128.48 × 1,226.56
  4. Step 4: Simplify right side
    3,418.24x = 6,290,388.43
  5. Step 5: Solve for x
    x = 6,290,388.43/3,418.24
  6. Step 6: Final answer
    x = 1,840.24

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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.