Home / 5,198.05-7,173.35-2,840.19

Finding the Fourth Proportional to 5,198.05, 7,173.35 and 2,840.19

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Solution

The fourth proportional to 5,198.05, 7,173.35 and 2,840.19 is: 3,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.05 : 7,173.35 = 2,840.19 : x
  2. Step 2: Convert to fraction form
    5,198.05/7,173.35 = 2,840.19/x
  3. Step 3: Cross multiply
    5,198.05x = 7,173.35 × 2,840.19
  4. Step 4: Simplify right side
    5,198.05x = 20,373,676.94
  5. Step 5: Solve for x
    x = 20,373,676.94/5,198.05
  6. Step 6: Final answer
    x = 3,919.48

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.