Home / 3,919.52-5,879.66-1,146.22

Finding the Fourth Proportional to 3,919.52, 5,879.66 and 1,146.22

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Solution

The fourth proportional to 3,919.52, 5,879.66 and 1,146.22 is: 1,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.52 : 5,879.66 = 1,146.22 : x
  2. Step 2: Convert to fraction form
    3,919.52/5,879.66 = 1,146.22/x
  3. Step 3: Cross multiply
    3,919.52x = 5,879.66 × 1,146.22
  4. Step 4: Simplify right side
    3,919.52x = 6,739,383.89
  5. Step 5: Solve for x
    x = 6,739,383.89/3,919.52
  6. Step 6: Final answer
    x = 1,719.44

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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.