Home / 3,455.76-5,183.46-1,115.88

Finding the Fourth Proportional to 3,455.76, 5,183.46 and 1,115.88

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Solution

The fourth proportional to 3,455.76, 5,183.46 and 1,115.88 is: 1,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.76 : 5,183.46 = 1,115.88 : x
  2. Step 2: Convert to fraction form
    3,455.76/5,183.46 = 1,115.88/x
  3. Step 3: Cross multiply
    3,455.76x = 5,183.46 × 1,115.88
  4. Step 4: Simplify right side
    3,455.76x = 5,784,119.34
  5. Step 5: Solve for x
    x = 5,784,119.34/3,455.76
  6. Step 6: Final answer
    x = 1,673.76

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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.