Home / 1,648.88-2,272.26-1,229.72

Finding the Fourth Proportional to 1,648.88, 2,272.26 and 1,229.72

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Solution

The fourth proportional to 1,648.88, 2,272.26 and 1,229.72 is: 1,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.88 : 2,272.26 = 1,229.72 : x
  2. Step 2: Convert to fraction form
    1,648.88/2,272.26 = 1,229.72/x
  3. Step 3: Cross multiply
    1,648.88x = 2,272.26 × 1,229.72
  4. Step 4: Simplify right side
    1,648.88x = 2,794,243.57
  5. Step 5: Solve for x
    x = 2,794,243.57/1,648.88
  6. Step 6: Final answer
    x = 1,694.63

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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.