Home / 3,604.30-4,974.41-2,112.80

Finding the Fourth Proportional to 3,604.30, 4,974.41 and 2,112.80

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Solution

The fourth proportional to 3,604.30, 4,974.41 and 2,112.80 is: 2,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.30 : 4,974.41 = 2,112.80 : x
  2. Step 2: Convert to fraction form
    3,604.30/4,974.41 = 2,112.80/x
  3. Step 3: Cross multiply
    3,604.30x = 4,974.41 × 2,112.80
  4. Step 4: Simplify right side
    3,604.30x = 10,509,922.88
  5. Step 5: Solve for x
    x = 10,509,922.88/3,604.30
  6. Step 6: Final answer
    x = 2,915.94

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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.