Home / 4,021.80-5,550.24-2,448.78

Finding the Fourth Proportional to 4,021.80, 5,550.24 and 2,448.78

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Solution

The fourth proportional to 4,021.80, 5,550.24 and 2,448.78 is: 3,379.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.80 : 5,550.24 = 2,448.78 : x
  2. Step 2: Convert to fraction form
    4,021.80/5,550.24 = 2,448.78/x
  3. Step 3: Cross multiply
    4,021.80x = 5,550.24 × 2,448.78
  4. Step 4: Simplify right side
    4,021.80x = 13,591,316.71
  5. Step 5: Solve for x
    x = 13,591,316.71/4,021.80
  6. Step 6: Final answer
    x = 3,379.41

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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.