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Finding the Fourth Proportional to 3,354.37, 5,031 and 889.34

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Solution

The fourth proportional to 3,354.37, 5,031 and 889.34 is: 1,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.37 : 5,031 = 889.34 : x
  2. Step 2: Convert to fraction form
    3,354.37/5,031 = 889.34/x
  3. Step 3: Cross multiply
    3,354.37x = 5,031 × 889.34
  4. Step 4: Simplify right side
    3,354.37x = 4,474,269.54
  5. Step 5: Solve for x
    x = 4,474,269.54/3,354.37
  6. Step 6: Final answer
    x = 1,333.86

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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.