Home / 5,424.44-8,131.80-1,960.88

Finding the Fourth Proportional to 5,424.44, 8,131.80 and 1,960.88

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Solution

The fourth proportional to 5,424.44, 8,131.80 and 1,960.88 is: 2,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.44 : 8,131.80 = 1,960.88 : x
  2. Step 2: Convert to fraction form
    5,424.44/8,131.80 = 1,960.88/x
  3. Step 3: Cross multiply
    5,424.44x = 8,131.80 × 1,960.88
  4. Step 4: Simplify right side
    5,424.44x = 15,945,483.98
  5. Step 5: Solve for x
    x = 15,945,483.98/5,424.44
  6. Step 6: Final answer
    x = 2,939.56

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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.