Home / 3,118.14-4,677.12-2,774.61

Finding the Fourth Proportional to 3,118.14, 4,677.12 and 2,774.61

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Solution

The fourth proportional to 3,118.14, 4,677.12 and 2,774.61 is: 4,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.14 : 4,677.12 = 2,774.61 : x
  2. Step 2: Convert to fraction form
    3,118.14/4,677.12 = 2,774.61/x
  3. Step 3: Cross multiply
    3,118.14x = 4,677.12 × 2,774.61
  4. Step 4: Simplify right side
    3,118.14x = 12,977,183.92
  5. Step 5: Solve for x
    x = 12,977,183.92/3,118.14
  6. Step 6: Final answer
    x = 4,161.83

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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.