Home / 6,928.76-10,396.72-3,811.22

Finding the Fourth Proportional to 6,928.76, 10,396.72 and 3,811.22

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Solution

The fourth proportional to 6,928.76, 10,396.72 and 3,811.22 is: 5,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.76 : 10,396.72 = 3,811.22 : x
  2. Step 2: Convert to fraction form
    6,928.76/10,396.72 = 3,811.22/x
  3. Step 3: Cross multiply
    6,928.76x = 10,396.72 × 3,811.22
  4. Step 4: Simplify right side
    6,928.76x = 39,624,187.20
  5. Step 5: Solve for x
    x = 39,624,187.20/6,928.76
  6. Step 6: Final answer
    x = 5,718.80

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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.