Home / 6,311.79-9,467.82-1,631.90

Finding the Fourth Proportional to 6,311.79, 9,467.82 and 1,631.90

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Solution

The fourth proportional to 6,311.79, 9,467.82 and 1,631.90 is: 2,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.79 : 9,467.82 = 1,631.90 : x
  2. Step 2: Convert to fraction form
    6,311.79/9,467.82 = 1,631.90/x
  3. Step 3: Cross multiply
    6,311.79x = 9,467.82 × 1,631.90
  4. Step 4: Simplify right side
    6,311.79x = 15,450,535.46
  5. Step 5: Solve for x
    x = 15,450,535.46/6,311.79
  6. Step 6: Final answer
    x = 2,447.88

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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.