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Finding the Fourth Proportional to 7,471.64, 11,201.19 and 2,789.03

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Solution

The fourth proportional to 7,471.64, 11,201.19 and 2,789.03 is: 4,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.64 : 11,201.19 = 2,789.03 : x
  2. Step 2: Convert to fraction form
    7,471.64/11,201.19 = 2,789.03/x
  3. Step 3: Cross multiply
    7,471.64x = 11,201.19 × 2,789.03
  4. Step 4: Simplify right side
    7,471.64x = 31,240,472.49
  5. Step 5: Solve for x
    x = 31,240,472.49/7,471.64
  6. Step 6: Final answer
    x = 4,181.21

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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.