Home / 2,843.80-3,924.42-1,584.78

Finding the Fourth Proportional to 2,843.80, 3,924.42 and 1,584.78

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Solution

The fourth proportional to 2,843.80, 3,924.42 and 1,584.78 is: 2,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,843.80 : 3,924.42 = 1,584.78 : x
  2. Step 2: Convert to fraction form
    2,843.80/3,924.42 = 1,584.78/x
  3. Step 3: Cross multiply
    2,843.80x = 3,924.42 × 1,584.78
  4. Step 4: Simplify right side
    2,843.80x = 6,219,342.33
  5. Step 5: Solve for x
    x = 6,219,342.33/2,843.80
  6. Step 6: Final answer
    x = 2,186.98

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1.5x scale

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.