Home / 3,455.60-5,183.26-1,115.71

Finding the Fourth Proportional to 3,455.60, 5,183.26 and 1,115.71

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Solution

The fourth proportional to 3,455.60, 5,183.26 and 1,115.71 is: 1,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.60 : 5,183.26 = 1,115.71 : x
  2. Step 2: Convert to fraction form
    3,455.60/5,183.26 = 1,115.71/x
  3. Step 3: Cross multiply
    3,455.60x = 5,183.26 × 1,115.71
  4. Step 4: Simplify right side
    3,455.60x = 5,782,999.27
  5. Step 5: Solve for x
    x = 5,782,999.27/3,455.60
  6. Step 6: Final answer
    x = 1,673.52

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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.