Home / 3,921.29-5,871.39-2,068.55

Finding the Fourth Proportional to 3,921.29, 5,871.39 and 2,068.55

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Solution

The fourth proportional to 3,921.29, 5,871.39 and 2,068.55 is: 3,097.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.29 : 5,871.39 = 2,068.55 : x
  2. Step 2: Convert to fraction form
    3,921.29/5,871.39 = 2,068.55/x
  3. Step 3: Cross multiply
    3,921.29x = 5,871.39 × 2,068.55
  4. Step 4: Simplify right side
    3,921.29x = 12,145,234.43
  5. Step 5: Solve for x
    x = 12,145,234.43/3,921.29
  6. Step 6: Final answer
    x = 3,097.26

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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.