Home / 2,919.41-4,380.24-1,071.80

Finding the Fourth Proportional to 2,919.41, 4,380.24 and 1,071.80

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Solution

The fourth proportional to 2,919.41, 4,380.24 and 1,071.80 is: 1,608.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.41 : 4,380.24 = 1,071.80 : x
  2. Step 2: Convert to fraction form
    2,919.41/4,380.24 = 1,071.80/x
  3. Step 3: Cross multiply
    2,919.41x = 4,380.24 × 1,071.80
  4. Step 4: Simplify right side
    2,919.41x = 4,694,739.78
  5. Step 5: Solve for x
    x = 4,694,739.78/2,919.41
  6. Step 6: Final answer
    x = 1,608.11

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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.