Home / 3,879.26-5,353.49-2,110.98

Finding the Fourth Proportional to 3,879.26, 5,353.49 and 2,110.98

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Solution

The fourth proportional to 3,879.26, 5,353.49 and 2,110.98 is: 2,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.26 : 5,353.49 = 2,110.98 : x
  2. Step 2: Convert to fraction form
    3,879.26/5,353.49 = 2,110.98/x
  3. Step 3: Cross multiply
    3,879.26x = 5,353.49 × 2,110.98
  4. Step 4: Simplify right side
    3,879.26x = 11,301,110.32
  5. Step 5: Solve for x
    x = 11,301,110.32/3,879.26
  6. Step 6: Final answer
    x = 2,913.21

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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.