Home / 3,817.55-5,725.79-2,127.29

Finding the Fourth Proportional to 3,817.55, 5,725.79 and 2,127.29

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Solution

The fourth proportional to 3,817.55, 5,725.79 and 2,127.29 is: 3,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.55 : 5,725.79 = 2,127.29 : x
  2. Step 2: Convert to fraction form
    3,817.55/5,725.79 = 2,127.29/x
  3. Step 3: Cross multiply
    3,817.55x = 5,725.79 × 2,127.29
  4. Step 4: Simplify right side
    3,817.55x = 12,180,435.82
  5. Step 5: Solve for x
    x = 12,180,435.82/3,817.55
  6. Step 6: Final answer
    x = 3,190.64

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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.