Home / 4,921.08-7,375.38-4,869

Finding the Fourth Proportional to 4,921.08, 7,375.38 and 4,869

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Solution

The fourth proportional to 4,921.08, 7,375.38 and 4,869 is: 7,297.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.08 : 7,375.38 = 4,869 : x
  2. Step 2: Convert to fraction form
    4,921.08/7,375.38 = 4,869/x
  3. Step 3: Cross multiply
    4,921.08x = 7,375.38 × 4,869
  4. Step 4: Simplify right side
    4,921.08x = 35,910,725.22
  5. Step 5: Solve for x
    x = 35,910,725.22/4,921.08
  6. Step 6: Final answer
    x = 7,297.33

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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.