Home / 2,675.73-4,012.91-1,288.70

Finding the Fourth Proportional to 2,675.73, 4,012.91 and 1,288.70

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Solution

The fourth proportional to 2,675.73, 4,012.91 and 1,288.70 is: 1,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.73 : 4,012.91 = 1,288.70 : x
  2. Step 2: Convert to fraction form
    2,675.73/4,012.91 = 1,288.70/x
  3. Step 3: Cross multiply
    2,675.73x = 4,012.91 × 1,288.70
  4. Step 4: Simplify right side
    2,675.73x = 5,171,450.37
  5. Step 5: Solve for x
    x = 5,171,450.37/2,675.73
  6. Step 6: Final answer
    x = 1,932.73

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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.