Home / 3,255.48-4,879.62-1,406.28

Finding the Fourth Proportional to 3,255.48, 4,879.62 and 1,406.28

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Solution

The fourth proportional to 3,255.48, 4,879.62 and 1,406.28 is: 2,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.48 : 4,879.62 = 1,406.28 : x
  2. Step 2: Convert to fraction form
    3,255.48/4,879.62 = 1,406.28/x
  3. Step 3: Cross multiply
    3,255.48x = 4,879.62 × 1,406.28
  4. Step 4: Simplify right side
    3,255.48x = 6,862,112.01
  5. Step 5: Solve for x
    x = 6,862,112.01/3,255.48
  6. Step 6: Final answer
    x = 2,107.86

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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.