Home / 3,455.08-5,183.64-1,115.45

Finding the Fourth Proportional to 3,455.08, 5,183.64 and 1,115.45

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Solution

The fourth proportional to 3,455.08, 5,183.64 and 1,115.45 is: 1,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.08 : 5,183.64 = 1,115.45 : x
  2. Step 2: Convert to fraction form
    3,455.08/5,183.64 = 1,115.45/x
  3. Step 3: Cross multiply
    3,455.08x = 5,183.64 × 1,115.45
  4. Step 4: Simplify right side
    3,455.08x = 5,782,091.24
  5. Step 5: Solve for x
    x = 5,782,091.24/3,455.08
  6. Step 6: Final answer
    x = 1,673.50

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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.