Home / 5,455.39-8,183.16-1,559.79

Finding the Fourth Proportional to 5,455.39, 8,183.16 and 1,559.79

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Solution

The fourth proportional to 5,455.39, 8,183.16 and 1,559.79 is: 2,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.39 : 8,183.16 = 1,559.79 : x
  2. Step 2: Convert to fraction form
    5,455.39/8,183.16 = 1,559.79/x
  3. Step 3: Cross multiply
    5,455.39x = 8,183.16 × 1,559.79
  4. Step 4: Simplify right side
    5,455.39x = 12,764,035.52
  5. Step 5: Solve for x
    x = 12,764,035.52/5,455.39
  6. Step 6: Final answer
    x = 2,339.71

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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.