Home / 4,879.19-6,730.75-3,107.72

Finding the Fourth Proportional to 4,879.19, 6,730.75 and 3,107.72

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Solution

The fourth proportional to 4,879.19, 6,730.75 and 3,107.72 is: 4,287.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.19 : 6,730.75 = 3,107.72 : x
  2. Step 2: Convert to fraction form
    4,879.19/6,730.75 = 3,107.72/x
  3. Step 3: Cross multiply
    4,879.19x = 6,730.75 × 3,107.72
  4. Step 4: Simplify right side
    4,879.19x = 20,917,286.39
  5. Step 5: Solve for x
    x = 20,917,286.39/4,879.19
  6. Step 6: Final answer
    x = 4,287.04

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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.