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Finding the Fourth Proportional to 3,832.78, 5,289.48 and 2,239.94

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Solution

The fourth proportional to 3,832.78, 5,289.48 and 2,239.94 is: 3,091.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,832.78 : 5,289.48 = 2,239.94 : x
  2. Step 2: Convert to fraction form
    3,832.78/5,289.48 = 2,239.94/x
  3. Step 3: Cross multiply
    3,832.78x = 5,289.48 × 2,239.94
  4. Step 4: Simplify right side
    3,832.78x = 11,848,117.83
  5. Step 5: Solve for x
    x = 11,848,117.83/3,832.78
  6. Step 6: Final answer
    x = 3,091.26

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1.5x scale

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.