Home / 7,982.20-11,973.32-2,435.58

Finding the Fourth Proportional to 7,982.20, 11,973.32 and 2,435.58

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Solution

The fourth proportional to 7,982.20, 11,973.32 and 2,435.58 is: 3,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.20 : 11,973.32 = 2,435.58 : x
  2. Step 2: Convert to fraction form
    7,982.20/11,973.32 = 2,435.58/x
  3. Step 3: Cross multiply
    7,982.20x = 11,973.32 × 2,435.58
  4. Step 4: Simplify right side
    7,982.20x = 29,161,978.73
  5. Step 5: Solve for x
    x = 29,161,978.73/7,982.20
  6. Step 6: Final answer
    x = 3,653.38

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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.