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Finding the Fourth Proportional to 3,859, 5,325.48 and 2,203

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Solution

The fourth proportional to 3,859, 5,325.48 and 2,203 is: 3,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859 : 5,325.48 = 2,203 : x
  2. Step 2: Convert to fraction form
    3,859/5,325.48 = 2,203/x
  3. Step 3: Cross multiply
    3,859x = 5,325.48 × 2,203
  4. Step 4: Simplify right side
    3,859x = 11,732,032.44
  5. Step 5: Solve for x
    x = 11,732,032.44/3,859
  6. Step 6: Final answer
    x = 3,040.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.