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Finding the Fourth Proportional to 3,816.01, 5,718.13 and 1,869.55

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Solution

The fourth proportional to 3,816.01, 5,718.13 and 1,869.55 is: 2,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.01 : 5,718.13 = 1,869.55 : x
  2. Step 2: Convert to fraction form
    3,816.01/5,718.13 = 1,869.55/x
  3. Step 3: Cross multiply
    3,816.01x = 5,718.13 × 1,869.55
  4. Step 4: Simplify right side
    3,816.01x = 10,690,329.94
  5. Step 5: Solve for x
    x = 10,690,329.94/3,816.01
  6. Step 6: Final answer
    x = 2,801.44

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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.