Home / 3,815.55-5,717.66-2,255.90

Finding the Fourth Proportional to 3,815.55, 5,717.66 and 2,255.90

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Solution

The fourth proportional to 3,815.55, 5,717.66 and 2,255.90 is: 3,380.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.55 : 5,717.66 = 2,255.90 : x
  2. Step 2: Convert to fraction form
    3,815.55/5,717.66 = 2,255.90/x
  3. Step 3: Cross multiply
    3,815.55x = 5,717.66 × 2,255.90
  4. Step 4: Simplify right side
    3,815.55x = 12,898,457.91
  5. Step 5: Solve for x
    x = 12,898,457.91/3,815.55
  6. Step 6: Final answer
    x = 3,380.50

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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.