Home / 1,939.11-2,676.25-1,100.02

Finding the Fourth Proportional to 1,939.11, 2,676.25 and 1,100.02

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Solution

The fourth proportional to 1,939.11, 2,676.25 and 1,100.02 is: 1,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.11 : 2,676.25 = 1,100.02 : x
  2. Step 2: Convert to fraction form
    1,939.11/2,676.25 = 1,100.02/x
  3. Step 3: Cross multiply
    1,939.11x = 2,676.25 × 1,100.02
  4. Step 4: Simplify right side
    1,939.11x = 2,943,929.12
  5. Step 5: Solve for x
    x = 2,943,929.12/1,939.11
  6. Step 6: Final answer
    x = 1,518.19

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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.