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Finding the Fourth Proportional to 3,862.98, 5,795.39 and 1,265.86

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Solution

The fourth proportional to 3,862.98, 5,795.39 and 1,265.86 is: 1,899.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.98 : 5,795.39 = 1,265.86 : x
  2. Step 2: Convert to fraction form
    3,862.98/5,795.39 = 1,265.86/x
  3. Step 3: Cross multiply
    3,862.98x = 5,795.39 × 1,265.86
  4. Step 4: Simplify right side
    3,862.98x = 7,336,152.39
  5. Step 5: Solve for x
    x = 7,336,152.39/3,862.98
  6. Step 6: Final answer
    x = 1,899.09

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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.