Home / 3,579.30-4,939.31-2,086.99

Finding the Fourth Proportional to 3,579.30, 4,939.31 and 2,086.99

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Solution

The fourth proportional to 3,579.30, 4,939.31 and 2,086.99 is: 2,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.30 : 4,939.31 = 2,086.99 : x
  2. Step 2: Convert to fraction form
    3,579.30/4,939.31 = 2,086.99/x
  3. Step 3: Cross multiply
    3,579.30x = 4,939.31 × 2,086.99
  4. Step 4: Simplify right side
    3,579.30x = 10,308,283.45
  5. Step 5: Solve for x
    x = 10,308,283.45/3,579.30
  6. Step 6: Final answer
    x = 2,879.97

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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.