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Finding the Fourth Proportional to 3,953.43, 5,925.11 and 1,868.82

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Solution

The fourth proportional to 3,953.43, 5,925.11 and 1,868.82 is: 2,800.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.43 : 5,925.11 = 1,868.82 : x
  2. Step 2: Convert to fraction form
    3,953.43/5,925.11 = 1,868.82/x
  3. Step 3: Cross multiply
    3,953.43x = 5,925.11 × 1,868.82
  4. Step 4: Simplify right side
    3,953.43x = 11,072,954.73
  5. Step 5: Solve for x
    x = 11,072,954.73/3,953.43
  6. Step 6: Final answer
    x = 2,800.85

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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.