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Finding the Fourth Proportional to 3,881.93, 5,812.55 and 2,651.73

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Solution

The fourth proportional to 3,881.93, 5,812.55 and 2,651.73 is: 3,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.93 : 5,812.55 = 2,651.73 : x
  2. Step 2: Convert to fraction form
    3,881.93/5,812.55 = 2,651.73/x
  3. Step 3: Cross multiply
    3,881.93x = 5,812.55 × 2,651.73
  4. Step 4: Simplify right side
    3,881.93x = 15,413,299.95
  5. Step 5: Solve for x
    x = 15,413,299.95/3,881.93
  6. Step 6: Final answer
    x = 3,970.53

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1.5x scale

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.