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Finding the Fourth Proportional to 4,193.70, 6,290.64 and 1,728.54

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Solution

The fourth proportional to 4,193.70, 6,290.64 and 1,728.54 is: 2,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,193.70 : 6,290.64 = 1,728.54 : x
  2. Step 2: Convert to fraction form
    4,193.70/6,290.64 = 1,728.54/x
  3. Step 3: Cross multiply
    4,193.70x = 6,290.64 × 1,728.54
  4. Step 4: Simplify right side
    4,193.70x = 10,873,622.87
  5. Step 5: Solve for x
    x = 10,873,622.87/4,193.70
  6. Step 6: Final answer
    x = 2,592.85

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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.