Home / 2,940.72-4,412.08-1,843.78

Finding the Fourth Proportional to 2,940.72, 4,412.08 and 1,843.78

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Solution

The fourth proportional to 2,940.72, 4,412.08 and 1,843.78 is: 2,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.72 : 4,412.08 = 1,843.78 : x
  2. Step 2: Convert to fraction form
    2,940.72/4,412.08 = 1,843.78/x
  3. Step 3: Cross multiply
    2,940.72x = 4,412.08 × 1,843.78
  4. Step 4: Simplify right side
    2,940.72x = 8,134,904.86
  5. Step 5: Solve for x
    x = 8,134,904.86/2,940.72
  6. Step 6: Final answer
    x = 2,766.30

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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.