Home / 8,380.79-12,571.80-2,537.86

Finding the Fourth Proportional to 8,380.79, 12,571.80 and 2,537.86

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Solution

The fourth proportional to 8,380.79, 12,571.80 and 2,537.86 is: 3,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.79 : 12,571.80 = 2,537.86 : x
  2. Step 2: Convert to fraction form
    8,380.79/12,571.80 = 2,537.86/x
  3. Step 3: Cross multiply
    8,380.79x = 12,571.80 × 2,537.86
  4. Step 4: Simplify right side
    8,380.79x = 31,905,405.49
  5. Step 5: Solve for x
    x = 31,905,405.49/8,380.79
  6. Step 6: Final answer
    x = 3,806.97

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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.