Home / 2,262.25-3,121.03-1,422.61

Finding the Fourth Proportional to 2,262.25, 3,121.03 and 1,422.61

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Solution

The fourth proportional to 2,262.25, 3,121.03 and 1,422.61 is: 1,962.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.25 : 3,121.03 = 1,422.61 : x
  2. Step 2: Convert to fraction form
    2,262.25/3,121.03 = 1,422.61/x
  3. Step 3: Cross multiply
    2,262.25x = 3,121.03 × 1,422.61
  4. Step 4: Simplify right side
    2,262.25x = 4,440,008.49
  5. Step 5: Solve for x
    x = 4,440,008.49/2,262.25
  6. Step 6: Final answer
    x = 1,962.65

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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.