Home / 5,626.80-8,448.30-3,990.60

Finding the Fourth Proportional to 5,626.80, 8,448.30 and 3,990.60

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Solution

The fourth proportional to 5,626.80, 8,448.30 and 3,990.60 is: 5,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.80 : 8,448.30 = 3,990.60 : x
  2. Step 2: Convert to fraction form
    5,626.80/8,448.30 = 3,990.60/x
  3. Step 3: Cross multiply
    5,626.80x = 8,448.30 × 3,990.60
  4. Step 4: Simplify right side
    5,626.80x = 33,713,785.98
  5. Step 5: Solve for x
    x = 33,713,785.98/5,626.80
  6. Step 6: Final answer
    x = 5,991.64

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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.