Home / 2,299.29-3,172.98-1,251.36

Finding the Fourth Proportional to 2,299.29, 3,172.98 and 1,251.36

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Solution

The fourth proportional to 2,299.29, 3,172.98 and 1,251.36 is: 1,726.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.29 : 3,172.98 = 1,251.36 : x
  2. Step 2: Convert to fraction form
    2,299.29/3,172.98 = 1,251.36/x
  3. Step 3: Cross multiply
    2,299.29x = 3,172.98 × 1,251.36
  4. Step 4: Simplify right side
    2,299.29x = 3,970,540.25
  5. Step 5: Solve for x
    x = 3,970,540.25/2,299.29
  6. Step 6: Final answer
    x = 1,726.85

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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.