Home / 3,419.54-5,129.45-1,227.68

Finding the Fourth Proportional to 3,419.54, 5,129.45 and 1,227.68

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Solution

The fourth proportional to 3,419.54, 5,129.45 and 1,227.68 is: 1,841.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.54 : 5,129.45 = 1,227.68 : x
  2. Step 2: Convert to fraction form
    3,419.54/5,129.45 = 1,227.68/x
  3. Step 3: Cross multiply
    3,419.54x = 5,129.45 × 1,227.68
  4. Step 4: Simplify right side
    3,419.54x = 6,297,323.18
  5. Step 5: Solve for x
    x = 6,297,323.18/3,419.54
  6. Step 6: Final answer
    x = 1,841.57

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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.