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Finding the Fourth Proportional to 3,889.98, 5,817.22 and 2,903.48

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Solution

The fourth proportional to 3,889.98, 5,817.22 and 2,903.48 is: 4,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.98 : 5,817.22 = 2,903.48 : x
  2. Step 2: Convert to fraction form
    3,889.98/5,817.22 = 2,903.48/x
  3. Step 3: Cross multiply
    3,889.98x = 5,817.22 × 2,903.48
  4. Step 4: Simplify right side
    3,889.98x = 16,890,181.93
  5. Step 5: Solve for x
    x = 16,890,181.93/3,889.98
  6. Step 6: Final answer
    x = 4,341.97

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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.