Home / 6,517.44-8,991.36-3,720.96

Finding the Fourth Proportional to 6,517.44, 8,991.36 and 3,720.96

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Solution

The fourth proportional to 6,517.44, 8,991.36 and 3,720.96 is: 5,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.44 : 8,991.36 = 3,720.96 : x
  2. Step 2: Convert to fraction form
    6,517.44/8,991.36 = 3,720.96/x
  3. Step 3: Cross multiply
    6,517.44x = 8,991.36 × 3,720.96
  4. Step 4: Simplify right side
    6,517.44x = 33,456,490.91
  5. Step 5: Solve for x
    x = 33,456,490.91/6,517.44
  6. Step 6: Final answer
    x = 5,133.38

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1.5x scale

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.