Home / 2,279.26-3,421.32-2,196.64

Finding the Fourth Proportional to 2,279.26, 3,421.32 and 2,196.64

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Solution

The fourth proportional to 2,279.26, 3,421.32 and 2,196.64 is: 3,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.26 : 3,421.32 = 2,196.64 : x
  2. Step 2: Convert to fraction form
    2,279.26/3,421.32 = 2,196.64/x
  3. Step 3: Cross multiply
    2,279.26x = 3,421.32 × 2,196.64
  4. Step 4: Simplify right side
    2,279.26x = 7,515,408.36
  5. Step 5: Solve for x
    x = 7,515,408.36/2,279.26
  6. Step 6: Final answer
    x = 3,297.30

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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.