Home / 4,660.80-6,429.60-3,969.60

Finding the Fourth Proportional to 4,660.80, 6,429.60 and 3,969.60

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Solution

The fourth proportional to 4,660.80, 6,429.60 and 3,969.60 is: 5,476.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,660.80 : 6,429.60 = 3,969.60 : x
  2. Step 2: Convert to fraction form
    4,660.80/6,429.60 = 3,969.60/x
  3. Step 3: Cross multiply
    4,660.80x = 6,429.60 × 3,969.60
  4. Step 4: Simplify right side
    4,660.80x = 25,522,940.16
  5. Step 5: Solve for x
    x = 25,522,940.16/4,660.80
  6. Step 6: Final answer
    x = 5,476.09

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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.