Home / 8,185.41-12,279.93-2,991.27

Finding the Fourth Proportional to 8,185.41, 12,279.93 and 2,991.27

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Solution

The fourth proportional to 8,185.41, 12,279.93 and 2,991.27 is: 4,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.41 : 12,279.93 = 2,991.27 : x
  2. Step 2: Convert to fraction form
    8,185.41/12,279.93 = 2,991.27/x
  3. Step 3: Cross multiply
    8,185.41x = 12,279.93 × 2,991.27
  4. Step 4: Simplify right side
    8,185.41x = 36,732,586.21
  5. Step 5: Solve for x
    x = 36,732,586.21/8,185.41
  6. Step 6: Final answer
    x = 4,487.57

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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.