Home / 4,129.23-6,179.43-3,380.18

Finding the Fourth Proportional to 4,129.23, 6,179.43 and 3,380.18

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Solution

The fourth proportional to 4,129.23, 6,179.43 and 3,380.18 is: 5,058.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.23 : 6,179.43 = 3,380.18 : x
  2. Step 2: Convert to fraction form
    4,129.23/6,179.43 = 3,380.18/x
  3. Step 3: Cross multiply
    4,129.23x = 6,179.43 × 3,380.18
  4. Step 4: Simplify right side
    4,129.23x = 20,887,601.15
  5. Step 5: Solve for x
    x = 20,887,601.15/4,129.23
  6. Step 6: Final answer
    x = 5,058.47

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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.