Home / 5,217.09-7,825.85-1,321.61

Finding the Fourth Proportional to 5,217.09, 7,825.85 and 1,321.61

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Solution

The fourth proportional to 5,217.09, 7,825.85 and 1,321.61 is: 1,982.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.09 : 7,825.85 = 1,321.61 : x
  2. Step 2: Convert to fraction form
    5,217.09/7,825.85 = 1,321.61/x
  3. Step 3: Cross multiply
    5,217.09x = 7,825.85 × 1,321.61
  4. Step 4: Simplify right side
    5,217.09x = 10,342,675.88
  5. Step 5: Solve for x
    x = 10,342,675.88/5,217.09
  6. Step 6: Final answer
    x = 1,982.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.