Home / 3,175.92-4,764.86-1,422.40

Finding the Fourth Proportional to 3,175.92, 4,764.86 and 1,422.40

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Solution

The fourth proportional to 3,175.92, 4,764.86 and 1,422.40 is: 2,134.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.92 : 4,764.86 = 1,422.40 : x
  2. Step 2: Convert to fraction form
    3,175.92/4,764.86 = 1,422.40/x
  3. Step 3: Cross multiply
    3,175.92x = 4,764.86 × 1,422.40
  4. Step 4: Simplify right side
    3,175.92x = 6,777,536.86
  5. Step 5: Solve for x
    x = 6,777,536.86/3,175.92
  6. Step 6: Final answer
    x = 2,134.04

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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.