Home / 2,252.75-3,108.80-1,321.79

Finding the Fourth Proportional to 2,252.75, 3,108.80 and 1,321.79

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Solution

The fourth proportional to 2,252.75, 3,108.80 and 1,321.79 is: 1,824.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.75 : 3,108.80 = 1,321.79 : x
  2. Step 2: Convert to fraction form
    2,252.75/3,108.80 = 1,321.79/x
  3. Step 3: Cross multiply
    2,252.75x = 3,108.80 × 1,321.79
  4. Step 4: Simplify right side
    2,252.75x = 4,109,180.75
  5. Step 5: Solve for x
    x = 4,109,180.75/2,252.75
  6. Step 6: Final answer
    x = 1,824.07

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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.