Home / 2,789.83-3,849.82-1,611.28

Finding the Fourth Proportional to 2,789.83, 3,849.82 and 1,611.28

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Solution

The fourth proportional to 2,789.83, 3,849.82 and 1,611.28 is: 2,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.83 : 3,849.82 = 1,611.28 : x
  2. Step 2: Convert to fraction form
    2,789.83/3,849.82 = 1,611.28/x
  3. Step 3: Cross multiply
    2,789.83x = 3,849.82 × 1,611.28
  4. Step 4: Simplify right side
    2,789.83x = 6,203,137.97
  5. Step 5: Solve for x
    x = 6,203,137.97/2,789.83
  6. Step 6: Final answer
    x = 2,223.48

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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.