Home / 4,919.12-7,379.04-1,998.08

Finding the Fourth Proportional to 4,919.12, 7,379.04 and 1,998.08

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Solution

The fourth proportional to 4,919.12, 7,379.04 and 1,998.08 is: 2,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.12 : 7,379.04 = 1,998.08 : x
  2. Step 2: Convert to fraction form
    4,919.12/7,379.04 = 1,998.08/x
  3. Step 3: Cross multiply
    4,919.12x = 7,379.04 × 1,998.08
  4. Step 4: Simplify right side
    4,919.12x = 14,743,912.24
  5. Step 5: Solve for x
    x = 14,743,912.24/4,919.12
  6. Step 6: Final answer
    x = 2,997.27

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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.