Home / 3,876.21-5,813.94-1,102.86

Finding the Fourth Proportional to 3,876.21, 5,813.94 and 1,102.86

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Solution

The fourth proportional to 3,876.21, 5,813.94 and 1,102.86 is: 1,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.21 : 5,813.94 = 1,102.86 : x
  2. Step 2: Convert to fraction form
    3,876.21/5,813.94 = 1,102.86/x
  3. Step 3: Cross multiply
    3,876.21x = 5,813.94 × 1,102.86
  4. Step 4: Simplify right side
    3,876.21x = 6,411,961.87
  5. Step 5: Solve for x
    x = 6,411,961.87/3,876.21
  6. Step 6: Final answer
    x = 1,654.18

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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.