Home / 3,311.03-4,960.05-1,921.45

Finding the Fourth Proportional to 3,311.03, 4,960.05 and 1,921.45

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Solution

The fourth proportional to 3,311.03, 4,960.05 and 1,921.45 is: 2,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.03 : 4,960.05 = 1,921.45 : x
  2. Step 2: Convert to fraction form
    3,311.03/4,960.05 = 1,921.45/x
  3. Step 3: Cross multiply
    3,311.03x = 4,960.05 × 1,921.45
  4. Step 4: Simplify right side
    3,311.03x = 9,530,505.28
  5. Step 5: Solve for x
    x = 9,530,505.28/3,311.03
  6. Step 6: Final answer
    x = 2,878.41

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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.