Home / 3,209.28-4,790.80-2,968.80

Finding the Fourth Proportional to 3,209.28, 4,790.80 and 2,968.80

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Solution

The fourth proportional to 3,209.28, 4,790.80 and 2,968.80 is: 4,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.28 : 4,790.80 = 2,968.80 : x
  2. Step 2: Convert to fraction form
    3,209.28/4,790.80 = 2,968.80/x
  3. Step 3: Cross multiply
    3,209.28x = 4,790.80 × 2,968.80
  4. Step 4: Simplify right side
    3,209.28x = 14,222,927.04
  5. Step 5: Solve for x
    x = 14,222,927.04/3,209.28
  6. Step 6: Final answer
    x = 4,431.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.