Home / 4,620.78-6,934.68-3,162.78

Finding the Fourth Proportional to 4,620.78, 6,934.68 and 3,162.78

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Solution

The fourth proportional to 4,620.78, 6,934.68 and 3,162.78 is: 4,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.78 : 6,934.68 = 3,162.78 : x
  2. Step 2: Convert to fraction form
    4,620.78/6,934.68 = 3,162.78/x
  3. Step 3: Cross multiply
    4,620.78x = 6,934.68 × 3,162.78
  4. Step 4: Simplify right side
    4,620.78x = 21,932,867.21
  5. Step 5: Solve for x
    x = 21,932,867.21/4,620.78
  6. Step 6: Final answer
    x = 4,746.57

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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.