Home / 2,731.87-3,771.26-1,789.03

Finding the Fourth Proportional to 2,731.87, 3,771.26 and 1,789.03

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Solution

The fourth proportional to 2,731.87, 3,771.26 and 1,789.03 is: 2,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.87 : 3,771.26 = 1,789.03 : x
  2. Step 2: Convert to fraction form
    2,731.87/3,771.26 = 1,789.03/x
  3. Step 3: Cross multiply
    2,731.87x = 3,771.26 × 1,789.03
  4. Step 4: Simplify right side
    2,731.87x = 6,746,897.28
  5. Step 5: Solve for x
    x = 6,746,897.28/2,731.87
  6. Step 6: Final answer
    x = 2,469.70

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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.