Home / 3,431.94-5,143.80-2,042.28

Finding the Fourth Proportional to 3,431.94, 5,143.80 and 2,042.28

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Solution

The fourth proportional to 3,431.94, 5,143.80 and 2,042.28 is: 3,060.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.94 : 5,143.80 = 2,042.28 : x
  2. Step 2: Convert to fraction form
    3,431.94/5,143.80 = 2,042.28/x
  3. Step 3: Cross multiply
    3,431.94x = 5,143.80 × 2,042.28
  4. Step 4: Simplify right side
    3,431.94x = 10,505,079.86
  5. Step 5: Solve for x
    x = 10,505,079.86/3,431.94
  6. Step 6: Final answer
    x = 3,060.97

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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.