Home / 2,257.74-3,115.62-1,262.82

Finding the Fourth Proportional to 2,257.74, 3,115.62 and 1,262.82

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Solution

The fourth proportional to 2,257.74, 3,115.62 and 1,262.82 is: 1,742.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.74 : 3,115.62 = 1,262.82 : x
  2. Step 2: Convert to fraction form
    2,257.74/3,115.62 = 1,262.82/x
  3. Step 3: Cross multiply
    2,257.74x = 3,115.62 × 1,262.82
  4. Step 4: Simplify right side
    2,257.74x = 3,934,467.25
  5. Step 5: Solve for x
    x = 3,934,467.25/2,257.74
  6. Step 6: Final answer
    x = 1,742.66

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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.