Home / 4,120.36-6,160.46-3,511.24

Finding the Fourth Proportional to 4,120.36, 6,160.46 and 3,511.24

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Solution

The fourth proportional to 4,120.36, 6,160.46 and 3,511.24 is: 5,249.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.36 : 6,160.46 = 3,511.24 : x
  2. Step 2: Convert to fraction form
    4,120.36/6,160.46 = 3,511.24/x
  3. Step 3: Cross multiply
    4,120.36x = 6,160.46 × 3,511.24
  4. Step 4: Simplify right side
    4,120.36x = 21,630,853.57
  5. Step 5: Solve for x
    x = 21,630,853.57/4,120.36
  6. Step 6: Final answer
    x = 5,249.75

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Half scale
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Find fourth proportional to 4,121.36, 6,161.96 and 3,512.24
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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.