Home / 3,579.30-4,939.38-2,087.28

Finding the Fourth Proportional to 3,579.30, 4,939.38 and 2,087.28

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Solution

The fourth proportional to 3,579.30, 4,939.38 and 2,087.28 is: 2,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.30 : 4,939.38 = 2,087.28 : x
  2. Step 2: Convert to fraction form
    3,579.30/4,939.38 = 2,087.28/x
  3. Step 3: Cross multiply
    3,579.30x = 4,939.38 × 2,087.28
  4. Step 4: Simplify right side
    3,579.30x = 10,309,869.09
  5. Step 5: Solve for x
    x = 10,309,869.09/3,579.30
  6. Step 6: Final answer
    x = 2,880.41

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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.