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Finding the Fourth Proportional to 3,388.73, 4,698.09 and 3,268.45

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Solution

The fourth proportional to 3,388.73, 4,698.09 and 3,268.45 is: 4,531.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.73 : 4,698.09 = 3,268.45 : x
  2. Step 2: Convert to fraction form
    3,388.73/4,698.09 = 3,268.45/x
  3. Step 3: Cross multiply
    3,388.73x = 4,698.09 × 3,268.45
  4. Step 4: Simplify right side
    3,388.73x = 15,355,432.43
  5. Step 5: Solve for x
    x = 15,355,432.43/3,388.73
  6. Step 6: Final answer
    x = 4,531.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.