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Finding the Fourth Proportional to 3,868.66, 5,801.02 and 1,891.33

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Solution

The fourth proportional to 3,868.66, 5,801.02 and 1,891.33 is: 2,836.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.66 : 5,801.02 = 1,891.33 : x
  2. Step 2: Convert to fraction form
    3,868.66/5,801.02 = 1,891.33/x
  3. Step 3: Cross multiply
    3,868.66x = 5,801.02 × 1,891.33
  4. Step 4: Simplify right side
    3,868.66x = 10,971,643.16
  5. Step 5: Solve for x
    x = 10,971,643.16/3,868.66
  6. Step 6: Final answer
    x = 2,836.03

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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.