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Finding the Fourth Proportional to 6,290.73, 9,435.78 and 1,908.54

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Solution

The fourth proportional to 6,290.73, 9,435.78 and 1,908.54 is: 2,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.73 : 9,435.78 = 1,908.54 : x
  2. Step 2: Convert to fraction form
    6,290.73/9,435.78 = 1,908.54/x
  3. Step 3: Cross multiply
    6,290.73x = 9,435.78 × 1,908.54
  4. Step 4: Simplify right side
    6,290.73x = 18,008,563.56
  5. Step 5: Solve for x
    x = 18,008,563.56/6,290.73
  6. Step 6: Final answer
    x = 2,862.71

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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.