Home / 8,285.85-12,431.00-3,606.86

Finding the Fourth Proportional to 8,285.85, 12,431.00 and 3,606.86

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Solution

The fourth proportional to 8,285.85, 12,431.00 and 3,606.86 is: 5,411.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.85 : 12,431.00 = 3,606.86 : x
  2. Step 2: Convert to fraction form
    8,285.85/12,431.00 = 3,606.86/x
  3. Step 3: Cross multiply
    8,285.85x = 12,431.00 × 3,606.86
  4. Step 4: Simplify right side
    8,285.85x = 44,836,916.75
  5. Step 5: Solve for x
    x = 44,836,916.75/8,285.85
  6. Step 6: Final answer
    x = 5,411.26

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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.