Home / 3,297.60-4,940.40-2,608.80

Finding the Fourth Proportional to 3,297.60, 4,940.40 and 2,608.80

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Solution

The fourth proportional to 3,297.60, 4,940.40 and 2,608.80 is: 3,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.60 : 4,940.40 = 2,608.80 : x
  2. Step 2: Convert to fraction form
    3,297.60/4,940.40 = 2,608.80/x
  3. Step 3: Cross multiply
    3,297.60x = 4,940.40 × 2,608.80
  4. Step 4: Simplify right side
    3,297.60x = 12,888,515.52
  5. Step 5: Solve for x
    x = 12,888,515.52/3,297.60
  6. Step 6: Final answer
    x = 3,908.45

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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.