Home / 2,719.66-4,079-1,238.54

Finding the Fourth Proportional to 2,719.66, 4,079 and 1,238.54

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Solution

The fourth proportional to 2,719.66, 4,079 and 1,238.54 is: 1,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.66 : 4,079 = 1,238.54 : x
  2. Step 2: Convert to fraction form
    2,719.66/4,079 = 1,238.54/x
  3. Step 3: Cross multiply
    2,719.66x = 4,079 × 1,238.54
  4. Step 4: Simplify right side
    2,719.66x = 5,052,004.66
  5. Step 5: Solve for x
    x = 5,052,004.66/2,719.66
  6. Step 6: Final answer
    x = 1,857.59

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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.