Home / 2,684.96-4,028.88-1,296.80

Finding the Fourth Proportional to 2,684.96, 4,028.88 and 1,296.80

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Solution

The fourth proportional to 2,684.96, 4,028.88 and 1,296.80 is: 1,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.96 : 4,028.88 = 1,296.80 : x
  2. Step 2: Convert to fraction form
    2,684.96/4,028.88 = 1,296.80/x
  3. Step 3: Cross multiply
    2,684.96x = 4,028.88 × 1,296.80
  4. Step 4: Simplify right side
    2,684.96x = 5,224,651.58
  5. Step 5: Solve for x
    x = 5,224,651.58/2,684.96
  6. Step 6: Final answer
    x = 1,945.90

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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.