Home / 7,990.53-11,983.37-3,828.39

Finding the Fourth Proportional to 7,990.53, 11,983.37 and 3,828.39

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Solution

The fourth proportional to 7,990.53, 11,983.37 and 3,828.39 is: 5,741.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.53 : 11,983.37 = 3,828.39 : x
  2. Step 2: Convert to fraction form
    7,990.53/11,983.37 = 3,828.39/x
  3. Step 3: Cross multiply
    7,990.53x = 11,983.37 × 3,828.39
  4. Step 4: Simplify right side
    7,990.53x = 45,876,994.73
  5. Step 5: Solve for x
    x = 45,876,994.73/7,990.53
  6. Step 6: Final answer
    x = 5,741.42

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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.