Home / 5,825.21-8,039.12-3,172.57

Finding the Fourth Proportional to 5,825.21, 8,039.12 and 3,172.57

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Solution

The fourth proportional to 5,825.21, 8,039.12 and 3,172.57 is: 4,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,825.21 : 8,039.12 = 3,172.57 : x
  2. Step 2: Convert to fraction form
    5,825.21/8,039.12 = 3,172.57/x
  3. Step 3: Cross multiply
    5,825.21x = 8,039.12 × 3,172.57
  4. Step 4: Simplify right side
    5,825.21x = 25,504,670.94
  5. Step 5: Solve for x
    x = 25,504,670.94/5,825.21
  6. Step 6: Final answer
    x = 4,378.33

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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.