Home / 8,285.72-12,431.82-3,092

Finding the Fourth Proportional to 8,285.72, 12,431.82 and 3,092

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Solution

The fourth proportional to 8,285.72, 12,431.82 and 3,092 is: 4,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.72 : 12,431.82 = 3,092 : x
  2. Step 2: Convert to fraction form
    8,285.72/12,431.82 = 3,092/x
  3. Step 3: Cross multiply
    8,285.72x = 12,431.82 × 3,092
  4. Step 4: Simplify right side
    8,285.72x = 38,439,187.44
  5. Step 5: Solve for x
    x = 38,439,187.44/8,285.72
  6. Step 6: Final answer
    x = 4,639.21

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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.