Home / 6,928.69-10,388.84-3,231.74

Finding the Fourth Proportional to 6,928.69, 10,388.84 and 3,231.74

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Solution

The fourth proportional to 6,928.69, 10,388.84 and 3,231.74 is: 4,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.69 : 10,388.84 = 3,231.74 : x
  2. Step 2: Convert to fraction form
    6,928.69/10,388.84 = 3,231.74/x
  3. Step 3: Cross multiply
    6,928.69x = 10,388.84 × 3,231.74
  4. Step 4: Simplify right side
    6,928.69x = 33,574,029.78
  5. Step 5: Solve for x
    x = 33,574,029.78/6,928.69
  6. Step 6: Final answer
    x = 4,845.65

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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.