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Finding the Fourth Proportional to 3,698.80, 5,548.20 and 3,295.60

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Solution

The fourth proportional to 3,698.80, 5,548.20 and 3,295.60 is: 4,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.80 : 5,548.20 = 3,295.60 : x
  2. Step 2: Convert to fraction form
    3,698.80/5,548.20 = 3,295.60/x
  3. Step 3: Cross multiply
    3,698.80x = 5,548.20 × 3,295.60
  4. Step 4: Simplify right side
    3,698.80x = 18,284,647.92
  5. Step 5: Solve for x
    x = 18,284,647.92/3,698.80
  6. Step 6: Final answer
    x = 4,943.40

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Similar ratio
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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.