Home / 2,719.38-4,072.95-1,662.30

Finding the Fourth Proportional to 2,719.38, 4,072.95 and 1,662.30

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Solution

The fourth proportional to 2,719.38, 4,072.95 and 1,662.30 is: 2,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.38 : 4,072.95 = 1,662.30 : x
  2. Step 2: Convert to fraction form
    2,719.38/4,072.95 = 1,662.30/x
  3. Step 3: Cross multiply
    2,719.38x = 4,072.95 × 1,662.30
  4. Step 4: Simplify right side
    2,719.38x = 6,770,464.79
  5. Step 5: Solve for x
    x = 6,770,464.79/2,719.38
  6. Step 6: Final answer
    x = 2,489.71

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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.