Home / 3,081.99-4,618.96-1,415.51

Finding the Fourth Proportional to 3,081.99, 4,618.96 and 1,415.51

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Solution

The fourth proportional to 3,081.99, 4,618.96 and 1,415.51 is: 2,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.99 : 4,618.96 = 1,415.51 : x
  2. Step 2: Convert to fraction form
    3,081.99/4,618.96 = 1,415.51/x
  3. Step 3: Cross multiply
    3,081.99x = 4,618.96 × 1,415.51
  4. Step 4: Simplify right side
    3,081.99x = 6,538,184.07
  5. Step 5: Solve for x
    x = 6,538,184.07/3,081.99
  6. Step 6: Final answer
    x = 2,121.42

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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.