Home / 2,717.77-4,076.61-868.86

Finding the Fourth Proportional to 2,717.77, 4,076.61 and 868.86

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Solution

The fourth proportional to 2,717.77, 4,076.61 and 868.86 is: 1,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.77 : 4,076.61 = 868.86 : x
  2. Step 2: Convert to fraction form
    2,717.77/4,076.61 = 868.86/x
  3. Step 3: Cross multiply
    2,717.77x = 4,076.61 × 868.86
  4. Step 4: Simplify right side
    2,717.77x = 3,542,003.36
  5. Step 5: Solve for x
    x = 3,542,003.36/2,717.77
  6. Step 6: Final answer
    x = 1,303.28

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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.