Home / 3,881.38-5,818.46-1,414.40

Finding the Fourth Proportional to 3,881.38, 5,818.46 and 1,414.40

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Solution

The fourth proportional to 3,881.38, 5,818.46 and 1,414.40 is: 2,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.38 : 5,818.46 = 1,414.40 : x
  2. Step 2: Convert to fraction form
    3,881.38/5,818.46 = 1,414.40/x
  3. Step 3: Cross multiply
    3,881.38x = 5,818.46 × 1,414.40
  4. Step 4: Simplify right side
    3,881.38x = 8,229,629.82
  5. Step 5: Solve for x
    x = 8,229,629.82/3,881.38
  6. Step 6: Final answer
    x = 2,120.28

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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.