Home / 3,429.90-5,143.11-1,481.22

Finding the Fourth Proportional to 3,429.90, 5,143.11 and 1,481.22

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Solution

The fourth proportional to 3,429.90, 5,143.11 and 1,481.22 is: 2,221.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.90 : 5,143.11 = 1,481.22 : x
  2. Step 2: Convert to fraction form
    3,429.90/5,143.11 = 1,481.22/x
  3. Step 3: Cross multiply
    3,429.90x = 5,143.11 × 1,481.22
  4. Step 4: Simplify right side
    3,429.90x = 7,618,077.39
  5. Step 5: Solve for x
    x = 7,618,077.39/3,429.90
  6. Step 6: Final answer
    x = 2,221.08

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1.5x scale

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.