Home / 2,607.85-3,917.22-2,217.79

Finding the Fourth Proportional to 2,607.85, 3,917.22 and 2,217.79

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Solution

The fourth proportional to 2,607.85, 3,917.22 and 2,217.79 is: 3,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.85 : 3,917.22 = 2,217.79 : x
  2. Step 2: Convert to fraction form
    2,607.85/3,917.22 = 2,217.79/x
  3. Step 3: Cross multiply
    2,607.85x = 3,917.22 × 2,217.79
  4. Step 4: Simplify right side
    2,607.85x = 8,687,571.34
  5. Step 5: Solve for x
    x = 8,687,571.34/2,607.85
  6. Step 6: Final answer
    x = 3,331.32

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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.