Home / 5,620.92-8,430.66-1,922.64

Finding the Fourth Proportional to 5,620.92, 8,430.66 and 1,922.64

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Solution

The fourth proportional to 5,620.92, 8,430.66 and 1,922.64 is: 2,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.92 : 8,430.66 = 1,922.64 : x
  2. Step 2: Convert to fraction form
    5,620.92/8,430.66 = 1,922.64/x
  3. Step 3: Cross multiply
    5,620.92x = 8,430.66 × 1,922.64
  4. Step 4: Simplify right side
    5,620.92x = 16,209,124.14
  5. Step 5: Solve for x
    x = 16,209,124.14/5,620.92
  6. Step 6: Final answer
    x = 2,883.71

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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.