Home / 2,879.26-4,318.62-1,783.78

Finding the Fourth Proportional to 2,879.26, 4,318.62 and 1,783.78

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Solution

The fourth proportional to 2,879.26, 4,318.62 and 1,783.78 is: 2,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.26 : 4,318.62 = 1,783.78 : x
  2. Step 2: Convert to fraction form
    2,879.26/4,318.62 = 1,783.78/x
  3. Step 3: Cross multiply
    2,879.26x = 4,318.62 × 1,783.78
  4. Step 4: Simplify right side
    2,879.26x = 7,703,467.98
  5. Step 5: Solve for x
    x = 7,703,467.98/2,879.26
  6. Step 6: Final answer
    x = 2,675.50

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1.5x scale

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.