Home / 3,976.38-5,481.53-3,030.53

Finding the Fourth Proportional to 3,976.38, 5,481.53 and 3,030.53

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Solution

The fourth proportional to 3,976.38, 5,481.53 and 3,030.53 is: 4,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.38 : 5,481.53 = 3,030.53 : x
  2. Step 2: Convert to fraction form
    3,976.38/5,481.53 = 3,030.53/x
  3. Step 3: Cross multiply
    3,976.38x = 5,481.53 × 3,030.53
  4. Step 4: Simplify right side
    3,976.38x = 16,611,941.11
  5. Step 5: Solve for x
    x = 16,611,941.11/3,976.38
  6. Step 6: Final answer
    x = 4,177.65

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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.