Home / 6,926.80-10,390.20-1,996.60

Finding the Fourth Proportional to 6,926.80, 10,390.20 and 1,996.60

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Solution

The fourth proportional to 6,926.80, 10,390.20 and 1,996.60 is: 2,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,926.80 : 10,390.20 = 1,996.60 : x
  2. Step 2: Convert to fraction form
    6,926.80/10,390.20 = 1,996.60/x
  3. Step 3: Cross multiply
    6,926.80x = 10,390.20 × 1,996.60
  4. Step 4: Simplify right side
    6,926.80x = 20,745,073.32
  5. Step 5: Solve for x
    x = 20,745,073.32/6,926.80
  6. Step 6: Final answer
    x = 2,994.90

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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.