Home / 6,811.76-9,400.26-3,828.62

Finding the Fourth Proportional to 6,811.76, 9,400.26 and 3,828.62

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Solution

The fourth proportional to 6,811.76, 9,400.26 and 3,828.62 is: 5,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.76 : 9,400.26 = 3,828.62 : x
  2. Step 2: Convert to fraction form
    6,811.76/9,400.26 = 3,828.62/x
  3. Step 3: Cross multiply
    6,811.76x = 9,400.26 × 3,828.62
  4. Step 4: Simplify right side
    6,811.76x = 35,989,976.44
  5. Step 5: Solve for x
    x = 35,989,976.44/6,811.76
  6. Step 6: Final answer
    x = 5,283.51

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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.