Home / 3,261.20-4,880.60-1,963.60

Finding the Fourth Proportional to 3,261.20, 4,880.60 and 1,963.60

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Solution

The fourth proportional to 3,261.20, 4,880.60 and 1,963.60 is: 2,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.20 : 4,880.60 = 1,963.60 : x
  2. Step 2: Convert to fraction form
    3,261.20/4,880.60 = 1,963.60/x
  3. Step 3: Cross multiply
    3,261.20x = 4,880.60 × 1,963.60
  4. Step 4: Simplify right side
    3,261.20x = 9,583,546.16
  5. Step 5: Solve for x
    x = 9,583,546.16/3,261.20
  6. Step 6: Final answer
    x = 2,938.66

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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.