Home / 3,919.84-5,410.68-3,504.65

Finding the Fourth Proportional to 3,919.84, 5,410.68 and 3,504.65

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Solution

The fourth proportional to 3,919.84, 5,410.68 and 3,504.65 is: 4,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.84 : 5,410.68 = 3,504.65 : x
  2. Step 2: Convert to fraction form
    3,919.84/5,410.68 = 3,504.65/x
  3. Step 3: Cross multiply
    3,919.84x = 5,410.68 × 3,504.65
  4. Step 4: Simplify right side
    3,919.84x = 18,962,539.66
  5. Step 5: Solve for x
    x = 18,962,539.66/3,919.84
  6. Step 6: Final answer
    x = 4,837.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.