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Finding the Fourth Proportional to 2,268.99, 3,404.94 and 808.15

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Solution

The fourth proportional to 2,268.99, 3,404.94 and 808.15 is: 1,212.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.99 : 3,404.94 = 808.15 : x
  2. Step 2: Convert to fraction form
    2,268.99/3,404.94 = 808.15/x
  3. Step 3: Cross multiply
    2,268.99x = 3,404.94 × 808.15
  4. Step 4: Simplify right side
    2,268.99x = 2,751,702.26
  5. Step 5: Solve for x
    x = 2,751,702.26/2,268.99
  6. Step 6: Final answer
    x = 1,212.74

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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.