Home / 3,319.20-4,578.12-1,922.22

Finding the Fourth Proportional to 3,319.20, 4,578.12 and 1,922.22

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Solution

The fourth proportional to 3,319.20, 4,578.12 and 1,922.22 is: 2,651.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.20 : 4,578.12 = 1,922.22 : x
  2. Step 2: Convert to fraction form
    3,319.20/4,578.12 = 1,922.22/x
  3. Step 3: Cross multiply
    3,319.20x = 4,578.12 × 1,922.22
  4. Step 4: Simplify right side
    3,319.20x = 8,800,153.83
  5. Step 5: Solve for x
    x = 8,800,153.83/3,319.20
  6. Step 6: Final answer
    x = 2,651.29

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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.