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Finding the Fourth Proportional to 5,611.75, 8,415.80 and 2,649.73

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Solution

The fourth proportional to 5,611.75, 8,415.80 and 2,649.73 is: 3,973.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.75 : 8,415.80 = 2,649.73 : x
  2. Step 2: Convert to fraction form
    5,611.75/8,415.80 = 2,649.73/x
  3. Step 3: Cross multiply
    5,611.75x = 8,415.80 × 2,649.73
  4. Step 4: Simplify right side
    5,611.75x = 22,299,584.49
  5. Step 5: Solve for x
    x = 22,299,584.49/5,611.75
  6. Step 6: Final answer
    x = 3,973.73

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Similar ratio
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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.