Home / 3,018.22-4,165.32-1,691.86

Finding the Fourth Proportional to 3,018.22, 4,165.32 and 1,691.86

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Solution

The fourth proportional to 3,018.22, 4,165.32 and 1,691.86 is: 2,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.22 : 4,165.32 = 1,691.86 : x
  2. Step 2: Convert to fraction form
    3,018.22/4,165.32 = 1,691.86/x
  3. Step 3: Cross multiply
    3,018.22x = 4,165.32 × 1,691.86
  4. Step 4: Simplify right side
    3,018.22x = 7,047,138.30
  5. Step 5: Solve for x
    x = 7,047,138.30/3,018.22
  6. Step 6: Final answer
    x = 2,334.87

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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.