Home / 2,229.19-3,076.28-1,297.69

Finding the Fourth Proportional to 2,229.19, 3,076.28 and 1,297.69

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Solution

The fourth proportional to 2,229.19, 3,076.28 and 1,297.69 is: 1,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.19 : 3,076.28 = 1,297.69 : x
  2. Step 2: Convert to fraction form
    2,229.19/3,076.28 = 1,297.69/x
  3. Step 3: Cross multiply
    2,229.19x = 3,076.28 × 1,297.69
  4. Step 4: Simplify right side
    2,229.19x = 3,992,048.48
  5. Step 5: Solve for x
    x = 3,992,048.48/2,229.19
  6. Step 6: Final answer
    x = 1,790.81

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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.