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Finding the Fourth Proportional to 2,558.08, 3,837 and 826.48

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Solution

The fourth proportional to 2,558.08, 3,837 and 826.48 is: 1,239.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.08 : 3,837 = 826.48 : x
  2. Step 2: Convert to fraction form
    2,558.08/3,837 = 826.48/x
  3. Step 3: Cross multiply
    2,558.08x = 3,837 × 826.48
  4. Step 4: Simplify right side
    2,558.08x = 3,171,203.76
  5. Step 5: Solve for x
    x = 3,171,203.76/2,558.08
  6. Step 6: Final answer
    x = 1,239.68

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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.