Home / 3,561.72-4,917.48-3,188.04

Finding the Fourth Proportional to 3,561.72, 4,917.48 and 3,188.04

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Solution

The fourth proportional to 3,561.72, 4,917.48 and 3,188.04 is: 4,401.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.72 : 4,917.48 = 3,188.04 : x
  2. Step 2: Convert to fraction form
    3,561.72/4,917.48 = 3,188.04/x
  3. Step 3: Cross multiply
    3,561.72x = 4,917.48 × 3,188.04
  4. Step 4: Simplify right side
    3,561.72x = 15,677,122.94
  5. Step 5: Solve for x
    x = 15,677,122.94/3,561.72
  6. Step 6: Final answer
    x = 4,401.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.