Home / 5,231.80-7,847.70-3,285.37

Finding the Fourth Proportional to 5,231.80, 7,847.70 and 3,285.37

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Solution

The fourth proportional to 5,231.80, 7,847.70 and 3,285.37 is: 4,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.80 : 7,847.70 = 3,285.37 : x
  2. Step 2: Convert to fraction form
    5,231.80/7,847.70 = 3,285.37/x
  3. Step 3: Cross multiply
    5,231.80x = 7,847.70 × 3,285.37
  4. Step 4: Simplify right side
    5,231.80x = 25,782,578.53
  5. Step 5: Solve for x
    x = 25,782,578.53/5,231.80
  6. Step 6: Final answer
    x = 4,928.05

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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.