Home / 1,939.13-2,676.39-1,099.88

Finding the Fourth Proportional to 1,939.13, 2,676.39 and 1,099.88

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Solution

The fourth proportional to 1,939.13, 2,676.39 and 1,099.88 is: 1,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.13 : 2,676.39 = 1,099.88 : x
  2. Step 2: Convert to fraction form
    1,939.13/2,676.39 = 1,099.88/x
  3. Step 3: Cross multiply
    1,939.13x = 2,676.39 × 1,099.88
  4. Step 4: Simplify right side
    1,939.13x = 2,943,694.45
  5. Step 5: Solve for x
    x = 2,943,694.45/1,939.13
  6. Step 6: Final answer
    x = 1,518.05

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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.