Home / 4,129.38-6,190.42-3,159.81

Finding the Fourth Proportional to 4,129.38, 6,190.42 and 3,159.81

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Solution

The fourth proportional to 4,129.38, 6,190.42 and 3,159.81 is: 4,736.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.38 : 6,190.42 = 3,159.81 : x
  2. Step 2: Convert to fraction form
    4,129.38/6,190.42 = 3,159.81/x
  3. Step 3: Cross multiply
    4,129.38x = 6,190.42 × 3,159.81
  4. Step 4: Simplify right side
    4,129.38x = 19,560,551.02
  5. Step 5: Solve for x
    x = 19,560,551.02/4,129.38
  6. Step 6: Final answer
    x = 4,736.92

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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.