Home / 3,902.43-5,853.81-1,129.38

Finding the Fourth Proportional to 3,902.43, 5,853.81 and 1,129.38

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Solution

The fourth proportional to 3,902.43, 5,853.81 and 1,129.38 is: 1,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.43 : 5,853.81 = 1,129.38 : x
  2. Step 2: Convert to fraction form
    3,902.43/5,853.81 = 1,129.38/x
  3. Step 3: Cross multiply
    3,902.43x = 5,853.81 × 1,129.38
  4. Step 4: Simplify right side
    3,902.43x = 6,611,141.02
  5. Step 5: Solve for x
    x = 6,611,141.02/3,902.43
  6. Step 6: Final answer
    x = 1,694.11

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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.