Home / 3,100.68-4,280.94-1,923

Finding the Fourth Proportional to 3,100.68, 4,280.94 and 1,923

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Solution

The fourth proportional to 3,100.68, 4,280.94 and 1,923 is: 2,654.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.68 : 4,280.94 = 1,923 : x
  2. Step 2: Convert to fraction form
    3,100.68/4,280.94 = 1,923/x
  3. Step 3: Cross multiply
    3,100.68x = 4,280.94 × 1,923
  4. Step 4: Simplify right side
    3,100.68x = 8,232,247.62
  5. Step 5: Solve for x
    x = 8,232,247.62/3,100.68
  6. Step 6: Final answer
    x = 2,654.98

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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.