Home / 2,719.54-4,078.69-1,331.48

Finding the Fourth Proportional to 2,719.54, 4,078.69 and 1,331.48

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Solution

The fourth proportional to 2,719.54, 4,078.69 and 1,331.48 is: 1,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.54 : 4,078.69 = 1,331.48 : x
  2. Step 2: Convert to fraction form
    2,719.54/4,078.69 = 1,331.48/x
  3. Step 3: Cross multiply
    2,719.54x = 4,078.69 × 1,331.48
  4. Step 4: Simplify right side
    2,719.54x = 5,430,694.16
  5. Step 5: Solve for x
    x = 5,430,694.16/2,719.54
  6. Step 6: Final answer
    x = 1,996.92

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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.