Home / 5,620.39-8,431.49-1,922.54

Finding the Fourth Proportional to 5,620.39, 8,431.49 and 1,922.54

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Solution

The fourth proportional to 5,620.39, 8,431.49 and 1,922.54 is: 2,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.39 : 8,431.49 = 1,922.54 : x
  2. Step 2: Convert to fraction form
    5,620.39/8,431.49 = 1,922.54/x
  3. Step 3: Cross multiply
    5,620.39x = 8,431.49 × 1,922.54
  4. Step 4: Simplify right side
    5,620.39x = 16,209,839.43
  5. Step 5: Solve for x
    x = 16,209,839.43/5,620.39
  6. Step 6: Final answer
    x = 2,884.11

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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.