Home / 2,789.73-4,185.80-1,057.95

Finding the Fourth Proportional to 2,789.73, 4,185.80 and 1,057.95

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Solution

The fourth proportional to 2,789.73, 4,185.80 and 1,057.95 is: 1,587.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.73 : 4,185.80 = 1,057.95 : x
  2. Step 2: Convert to fraction form
    2,789.73/4,185.80 = 1,057.95/x
  3. Step 3: Cross multiply
    2,789.73x = 4,185.80 × 1,057.95
  4. Step 4: Simplify right side
    2,789.73x = 4,428,367.11
  5. Step 5: Solve for x
    x = 4,428,367.11/2,789.73
  6. Step 6: Final answer
    x = 1,587.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.