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Finding the Fourth Proportional to 3,355.52, 4,630.76 and 1,863.57

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Solution

The fourth proportional to 3,355.52, 4,630.76 and 1,863.57 is: 2,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.52 : 4,630.76 = 1,863.57 : x
  2. Step 2: Convert to fraction form
    3,355.52/4,630.76 = 1,863.57/x
  3. Step 3: Cross multiply
    3,355.52x = 4,630.76 × 1,863.57
  4. Step 4: Simplify right side
    3,355.52x = 8,629,736.10
  5. Step 5: Solve for x
    x = 8,629,736.10/3,355.52
  6. Step 6: Final answer
    x = 2,571.81

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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.