Home / 3,419.67-5,129.52-1,228.41

Finding the Fourth Proportional to 3,419.67, 5,129.52 and 1,228.41

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Solution

The fourth proportional to 3,419.67, 5,129.52 and 1,228.41 is: 1,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.67 : 5,129.52 = 1,228.41 : x
  2. Step 2: Convert to fraction form
    3,419.67/5,129.52 = 1,228.41/x
  3. Step 3: Cross multiply
    3,419.67x = 5,129.52 × 1,228.41
  4. Step 4: Simplify right side
    3,419.67x = 6,301,153.66
  5. Step 5: Solve for x
    x = 6,301,153.66/3,419.67
  6. Step 6: Final answer
    x = 1,842.62

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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.