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Finding the Fourth Proportional to 3,863.74, 5,795.61 and 1,266.88

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Solution

The fourth proportional to 3,863.74, 5,795.61 and 1,266.88 is: 1,900.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.74 : 5,795.61 = 1,266.88 : x
  2. Step 2: Convert to fraction form
    3,863.74/5,795.61 = 1,266.88/x
  3. Step 3: Cross multiply
    3,863.74x = 5,795.61 × 1,266.88
  4. Step 4: Simplify right side
    3,863.74x = 7,342,307.08
  5. Step 5: Solve for x
    x = 7,342,307.08/3,863.74
  6. Step 6: Final answer
    x = 1,900.31

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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.