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Finding the Fourth Proportional to 2,912.37, 4,367.22 and 937.64

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Solution

The fourth proportional to 2,912.37, 4,367.22 and 937.64 is: 1,406.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.37 : 4,367.22 = 937.64 : x
  2. Step 2: Convert to fraction form
    2,912.37/4,367.22 = 937.64/x
  3. Step 3: Cross multiply
    2,912.37x = 4,367.22 × 937.64
  4. Step 4: Simplify right side
    2,912.37x = 4,094,887.56
  5. Step 5: Solve for x
    x = 4,094,887.56/2,912.37
  6. Step 6: Final answer
    x = 1,406.03

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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.