Home / 3,611.39-4,978.27-2,824.07

Finding the Fourth Proportional to 3,611.39, 4,978.27 and 2,824.07

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Solution

The fourth proportional to 3,611.39, 4,978.27 and 2,824.07 is: 3,892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.39 : 4,978.27 = 2,824.07 : x
  2. Step 2: Convert to fraction form
    3,611.39/4,978.27 = 2,824.07/x
  3. Step 3: Cross multiply
    3,611.39x = 4,978.27 × 2,824.07
  4. Step 4: Simplify right side
    3,611.39x = 14,058,982.96
  5. Step 5: Solve for x
    x = 14,058,982.96/3,611.39
  6. Step 6: Final answer
    x = 3,892.96

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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.