Home / 2,776.20-4,167.96-2,163.84

Finding the Fourth Proportional to 2,776.20, 4,167.96 and 2,163.84

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Solution

The fourth proportional to 2,776.20, 4,167.96 and 2,163.84 is: 3,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.20 : 4,167.96 = 2,163.84 : x
  2. Step 2: Convert to fraction form
    2,776.20/4,167.96 = 2,163.84/x
  3. Step 3: Cross multiply
    2,776.20x = 4,167.96 × 2,163.84
  4. Step 4: Simplify right side
    2,776.20x = 9,018,798.57
  5. Step 5: Solve for x
    x = 9,018,798.57/2,776.20
  6. Step 6: Final answer
    x = 3,248.61

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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.