Home / 6,990.20-10,485.42-1,796.12

Finding the Fourth Proportional to 6,990.20, 10,485.42 and 1,796.12

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Solution

The fourth proportional to 6,990.20, 10,485.42 and 1,796.12 is: 2,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.20 : 10,485.42 = 1,796.12 : x
  2. Step 2: Convert to fraction form
    6,990.20/10,485.42 = 1,796.12/x
  3. Step 3: Cross multiply
    6,990.20x = 10,485.42 × 1,796.12
  4. Step 4: Simplify right side
    6,990.20x = 18,833,072.57
  5. Step 5: Solve for x
    x = 18,833,072.57/6,990.20
  6. Step 6: Final answer
    x = 2,694.21

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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.