Home / 4,879.78-6,735.15-3,086.12

Finding the Fourth Proportional to 4,879.78, 6,735.15 and 3,086.12

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Solution

The fourth proportional to 4,879.78, 6,735.15 and 3,086.12 is: 4,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.78 : 6,735.15 = 3,086.12 : x
  2. Step 2: Convert to fraction form
    4,879.78/6,735.15 = 3,086.12/x
  3. Step 3: Cross multiply
    4,879.78x = 6,735.15 × 3,086.12
  4. Step 4: Simplify right side
    4,879.78x = 20,785,481.12
  5. Step 5: Solve for x
    x = 20,785,481.12/4,879.78
  6. Step 6: Final answer
    x = 4,259.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.