Home / 6,790.40-10,185.80-3,231.60

Finding the Fourth Proportional to 6,790.40, 10,185.80 and 3,231.60

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Solution

The fourth proportional to 6,790.40, 10,185.80 and 3,231.60 is: 4,847.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.40 : 10,185.80 = 3,231.60 : x
  2. Step 2: Convert to fraction form
    6,790.40/10,185.80 = 3,231.60/x
  3. Step 3: Cross multiply
    6,790.40x = 10,185.80 × 3,231.60
  4. Step 4: Simplify right side
    6,790.40x = 32,916,431.28
  5. Step 5: Solve for x
    x = 32,916,431.28/6,790.40
  6. Step 6: Final answer
    x = 4,847.50

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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.