Home / 3,579.12-4,939.92-2,007.72

Finding the Fourth Proportional to 3,579.12, 4,939.92 and 2,007.72

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Solution

The fourth proportional to 3,579.12, 4,939.92 and 2,007.72 is: 2,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.12 : 4,939.92 = 2,007.72 : x
  2. Step 2: Convert to fraction form
    3,579.12/4,939.92 = 2,007.72/x
  3. Step 3: Cross multiply
    3,579.12x = 4,939.92 × 2,007.72
  4. Step 4: Simplify right side
    3,579.12x = 9,917,976.18
  5. Step 5: Solve for x
    x = 9,917,976.18/3,579.12
  6. Step 6: Final answer
    x = 2,771.07

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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.