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Finding the Fourth Proportional to 2,793.81, 3,855.54 and 1,614.87

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Solution

The fourth proportional to 2,793.81, 3,855.54 and 1,614.87 is: 2,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.81 : 3,855.54 = 1,614.87 : x
  2. Step 2: Convert to fraction form
    2,793.81/3,855.54 = 1,614.87/x
  3. Step 3: Cross multiply
    2,793.81x = 3,855.54 × 1,614.87
  4. Step 4: Simplify right side
    2,793.81x = 6,226,195.88
  5. Step 5: Solve for x
    x = 6,226,195.88/2,793.81
  6. Step 6: Final answer
    x = 2,228.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.