Home / 2,257.87-3,115.81-1,263.25

Finding the Fourth Proportional to 2,257.87, 3,115.81 and 1,263.25

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Solution

The fourth proportional to 2,257.87, 3,115.81 and 1,263.25 is: 1,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.87 : 3,115.81 = 1,263.25 : x
  2. Step 2: Convert to fraction form
    2,257.87/3,115.81 = 1,263.25/x
  3. Step 3: Cross multiply
    2,257.87x = 3,115.81 × 1,263.25
  4. Step 4: Simplify right side
    2,257.87x = 3,936,046.98
  5. Step 5: Solve for x
    x = 3,936,046.98/2,257.87
  6. Step 6: Final answer
    x = 1,743.26

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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.