Home / 3,815.17-5,714.96-2,831.02

Finding the Fourth Proportional to 3,815.17, 5,714.96 and 2,831.02

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Solution

The fourth proportional to 3,815.17, 5,714.96 and 2,831.02 is: 4,240.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.17 : 5,714.96 = 2,831.02 : x
  2. Step 2: Convert to fraction form
    3,815.17/5,714.96 = 2,831.02/x
  3. Step 3: Cross multiply
    3,815.17x = 5,714.96 × 2,831.02
  4. Step 4: Simplify right side
    3,815.17x = 16,179,137.62
  5. Step 5: Solve for x
    x = 16,179,137.62/3,815.17
  6. Step 6: Final answer
    x = 4,240.74

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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.