Home / 5,120.75-7,670.80-3,267.27

Finding the Fourth Proportional to 5,120.75, 7,670.80 and 3,267.27

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Solution

The fourth proportional to 5,120.75, 7,670.80 and 3,267.27 is: 4,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.75 : 7,670.80 = 3,267.27 : x
  2. Step 2: Convert to fraction form
    5,120.75/7,670.80 = 3,267.27/x
  3. Step 3: Cross multiply
    5,120.75x = 7,670.80 × 3,267.27
  4. Step 4: Simplify right side
    5,120.75x = 25,062,578.80
  5. Step 5: Solve for x
    x = 25,062,578.80/5,120.75
  6. Step 6: Final answer
    x = 4,894.32

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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.