Home / 3,579.19-4,939.28-2,007.79

Finding the Fourth Proportional to 3,579.19, 4,939.28 and 2,007.79

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Solution

The fourth proportional to 3,579.19, 4,939.28 and 2,007.79 is: 2,770.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.19 : 4,939.28 = 2,007.79 : x
  2. Step 2: Convert to fraction form
    3,579.19/4,939.28 = 2,007.79/x
  3. Step 3: Cross multiply
    3,579.19x = 4,939.28 × 2,007.79
  4. Step 4: Simplify right side
    3,579.19x = 9,917,022.13
  5. Step 5: Solve for x
    x = 9,917,022.13/3,579.19
  6. Step 6: Final answer
    x = 2,770.75

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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.