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Finding the Fourth Proportional to 3,254.35, 4,490.22 and 1,928.38

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Solution

The fourth proportional to 3,254.35, 4,490.22 and 1,928.38 is: 2,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.35 : 4,490.22 = 1,928.38 : x
  2. Step 2: Convert to fraction form
    3,254.35/4,490.22 = 1,928.38/x
  3. Step 3: Cross multiply
    3,254.35x = 4,490.22 × 1,928.38
  4. Step 4: Simplify right side
    3,254.35x = 8,658,850.44
  5. Step 5: Solve for x
    x = 8,658,850.44/3,254.35
  6. Step 6: Final answer
    x = 2,660.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.