Home / 5,691.80-8,540.96-1,996.79

Finding the Fourth Proportional to 5,691.80, 8,540.96 and 1,996.79

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Solution

The fourth proportional to 5,691.80, 8,540.96 and 1,996.79 is: 2,996.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.80 : 8,540.96 = 1,996.79 : x
  2. Step 2: Convert to fraction form
    5,691.80/8,540.96 = 1,996.79/x
  3. Step 3: Cross multiply
    5,691.80x = 8,540.96 × 1,996.79
  4. Step 4: Simplify right side
    5,691.80x = 17,054,450.83
  5. Step 5: Solve for x
    x = 17,054,450.83/5,691.80
  6. Step 6: Final answer
    x = 2,996.32

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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.