Home / 5,321.12-7,982.97-1,623.41

Finding the Fourth Proportional to 5,321.12, 7,982.97 and 1,623.41

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Solution

The fourth proportional to 5,321.12, 7,982.97 and 1,623.41 is: 2,435.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.12 : 7,982.97 = 1,623.41 : x
  2. Step 2: Convert to fraction form
    5,321.12/7,982.97 = 1,623.41/x
  3. Step 3: Cross multiply
    5,321.12x = 7,982.97 × 1,623.41
  4. Step 4: Simplify right side
    5,321.12x = 12,959,625.21
  5. Step 5: Solve for x
    x = 12,959,625.21/5,321.12
  6. Step 6: Final answer
    x = 2,435.51

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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.