Home / 5,815.11-8,719.19-3,943.30

Finding the Fourth Proportional to 5,815.11, 8,719.19 and 3,943.30

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Solution

The fourth proportional to 5,815.11, 8,719.19 and 3,943.30 is: 5,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.11 : 8,719.19 = 3,943.30 : x
  2. Step 2: Convert to fraction form
    5,815.11/8,719.19 = 3,943.30/x
  3. Step 3: Cross multiply
    5,815.11x = 8,719.19 × 3,943.30
  4. Step 4: Simplify right side
    5,815.11x = 34,382,393.73
  5. Step 5: Solve for x
    x = 34,382,393.73/5,815.11
  6. Step 6: Final answer
    x = 5,912.60

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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.