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Finding the Fourth Proportional to 3,854.62, 5,781.93 and 1,544.50

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Solution

The fourth proportional to 3,854.62, 5,781.93 and 1,544.50 is: 2,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.62 : 5,781.93 = 1,544.50 : x
  2. Step 2: Convert to fraction form
    3,854.62/5,781.93 = 1,544.50/x
  3. Step 3: Cross multiply
    3,854.62x = 5,781.93 × 1,544.50
  4. Step 4: Simplify right side
    3,854.62x = 8,930,190.89
  5. Step 5: Solve for x
    x = 8,930,190.89/3,854.62
  6. Step 6: Final answer
    x = 2,316.75

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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.