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Finding the Fourth Proportional to 3,393.82, 5,086.54 and 1,928.53

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Solution

The fourth proportional to 3,393.82, 5,086.54 and 1,928.53 is: 2,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.82 : 5,086.54 = 1,928.53 : x
  2. Step 2: Convert to fraction form
    3,393.82/5,086.54 = 1,928.53/x
  3. Step 3: Cross multiply
    3,393.82x = 5,086.54 × 1,928.53
  4. Step 4: Simplify right side
    3,393.82x = 9,809,544.99
  5. Step 5: Solve for x
    x = 9,809,544.99/3,393.82
  6. Step 6: Final answer
    x = 2,890.41

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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.