Home / 2,782.22-4,173.33-2,231.69

Finding the Fourth Proportional to 2,782.22, 4,173.33 and 2,231.69

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Solution

The fourth proportional to 2,782.22, 4,173.33 and 2,231.69 is: 3,347.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.22 : 4,173.33 = 2,231.69 : x
  2. Step 2: Convert to fraction form
    2,782.22/4,173.33 = 2,231.69/x
  3. Step 3: Cross multiply
    2,782.22x = 4,173.33 × 2,231.69
  4. Step 4: Simplify right side
    2,782.22x = 9,313,578.83
  5. Step 5: Solve for x
    x = 9,313,578.83/2,782.22
  6. Step 6: Final answer
    x = 3,347.54

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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.