Home / 6,645.56-9,170.46-3,992.36

Finding the Fourth Proportional to 6,645.56, 9,170.46 and 3,992.36

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Solution

The fourth proportional to 6,645.56, 9,170.46 and 3,992.36 is: 5,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.56 : 9,170.46 = 3,992.36 : x
  2. Step 2: Convert to fraction form
    6,645.56/9,170.46 = 3,992.36/x
  3. Step 3: Cross multiply
    6,645.56x = 9,170.46 × 3,992.36
  4. Step 4: Simplify right side
    6,645.56x = 36,611,777.69
  5. Step 5: Solve for x
    x = 36,611,777.69/6,645.56
  6. Step 6: Final answer
    x = 5,509.21

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Similar ratio
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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.