Home / 2,422.56-3,634.44-691.18

Finding the Fourth Proportional to 2,422.56, 3,634.44 and 691.18

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Solution

The fourth proportional to 2,422.56, 3,634.44 and 691.18 is: 1,036.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.56 : 3,634.44 = 691.18 : x
  2. Step 2: Convert to fraction form
    2,422.56/3,634.44 = 691.18/x
  3. Step 3: Cross multiply
    2,422.56x = 3,634.44 × 691.18
  4. Step 4: Simplify right side
    2,422.56x = 2,512,052.24
  5. Step 5: Solve for x
    x = 2,512,052.24/2,422.56
  6. Step 6: Final answer
    x = 1,036.94

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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.