Home / 4,919.82-7,378.38-2,943.89

Finding the Fourth Proportional to 4,919.82, 7,378.38 and 2,943.89

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Solution

The fourth proportional to 4,919.82, 7,378.38 and 2,943.89 is: 4,415.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.82 : 7,378.38 = 2,943.89 : x
  2. Step 2: Convert to fraction form
    4,919.82/7,378.38 = 2,943.89/x
  3. Step 3: Cross multiply
    4,919.82x = 7,378.38 × 2,943.89
  4. Step 4: Simplify right side
    4,919.82x = 21,721,138.21
  5. Step 5: Solve for x
    x = 21,721,138.21/4,919.82
  6. Step 6: Final answer
    x = 4,415.03

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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.