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Finding the Fourth Proportional to 3,827.84, 5,741.81 and 1,487.98

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Solution

The fourth proportional to 3,827.84, 5,741.81 and 1,487.98 is: 2,231.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.84 : 5,741.81 = 1,487.98 : x
  2. Step 2: Convert to fraction form
    3,827.84/5,741.81 = 1,487.98/x
  3. Step 3: Cross multiply
    3,827.84x = 5,741.81 × 1,487.98
  4. Step 4: Simplify right side
    3,827.84x = 8,543,698.44
  5. Step 5: Solve for x
    x = 8,543,698.44/3,827.84
  6. Step 6: Final answer
    x = 2,231.99

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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.