Home / 6,856.80-10,289.76-3,936.48

Finding the Fourth Proportional to 6,856.80, 10,289.76 and 3,936.48

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Solution

The fourth proportional to 6,856.80, 10,289.76 and 3,936.48 is: 5,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,856.80 : 10,289.76 = 3,936.48 : x
  2. Step 2: Convert to fraction form
    6,856.80/10,289.76 = 3,936.48/x
  3. Step 3: Cross multiply
    6,856.80x = 10,289.76 × 3,936.48
  4. Step 4: Simplify right side
    6,856.80x = 40,505,434.44
  5. Step 5: Solve for x
    x = 40,505,434.44/6,856.80
  6. Step 6: Final answer
    x = 5,907.34

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1.5x scale

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.