Home / 7,190.60-10,786.80-1,996.47

Finding the Fourth Proportional to 7,190.60, 10,786.80 and 1,996.47

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Solution

The fourth proportional to 7,190.60, 10,786.80 and 1,996.47 is: 2,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.60 : 10,786.80 = 1,996.47 : x
  2. Step 2: Convert to fraction form
    7,190.60/10,786.80 = 1,996.47/x
  3. Step 3: Cross multiply
    7,190.60x = 10,786.80 × 1,996.47
  4. Step 4: Simplify right side
    7,190.60x = 21,535,522.60
  5. Step 5: Solve for x
    x = 21,535,522.60/7,190.60
  6. Step 6: Final answer
    x = 2,994.96

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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.