Home / 3,331.12-4,989.12-2,845.12

Finding the Fourth Proportional to 3,331.12, 4,989.12 and 2,845.12

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Solution

The fourth proportional to 3,331.12, 4,989.12 and 2,845.12 is: 4,261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.12 : 4,989.12 = 2,845.12 : x
  2. Step 2: Convert to fraction form
    3,331.12/4,989.12 = 2,845.12/x
  3. Step 3: Cross multiply
    3,331.12x = 4,989.12 × 2,845.12
  4. Step 4: Simplify right side
    3,331.12x = 14,194,645.09
  5. Step 5: Solve for x
    x = 14,194,645.09/3,331.12
  6. Step 6: Final answer
    x = 4,261.22

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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.