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Finding the Fourth Proportional to 5,912.40, 8,868.60 and 3,722.70

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Solution

The fourth proportional to 5,912.40, 8,868.60 and 3,722.70 is: 5,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.40 : 8,868.60 = 3,722.70 : x
  2. Step 2: Convert to fraction form
    5,912.40/8,868.60 = 3,722.70/x
  3. Step 3: Cross multiply
    5,912.40x = 8,868.60 × 3,722.70
  4. Step 4: Simplify right side
    5,912.40x = 33,015,137.22
  5. Step 5: Solve for x
    x = 33,015,137.22/5,912.40
  6. Step 6: Final answer
    x = 5,584.05

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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.