Home / 5,382.36-8,072.19-3,817.80

Finding the Fourth Proportional to 5,382.36, 8,072.19 and 3,817.80

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Solution

The fourth proportional to 5,382.36, 8,072.19 and 3,817.80 is: 5,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.36 : 8,072.19 = 3,817.80 : x
  2. Step 2: Convert to fraction form
    5,382.36/8,072.19 = 3,817.80/x
  3. Step 3: Cross multiply
    5,382.36x = 8,072.19 × 3,817.80
  4. Step 4: Simplify right side
    5,382.36x = 30,818,006.98
  5. Step 5: Solve for x
    x = 30,818,006.98/5,382.36
  6. Step 6: Final answer
    x = 5,725.74

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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.