Home / 2,990.82-4,480.06-2,331.99

Finding the Fourth Proportional to 2,990.82, 4,480.06 and 2,331.99

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Solution

The fourth proportional to 2,990.82, 4,480.06 and 2,331.99 is: 3,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.82 : 4,480.06 = 2,331.99 : x
  2. Step 2: Convert to fraction form
    2,990.82/4,480.06 = 2,331.99/x
  3. Step 3: Cross multiply
    2,990.82x = 4,480.06 × 2,331.99
  4. Step 4: Simplify right side
    2,990.82x = 10,447,453.66
  5. Step 5: Solve for x
    x = 10,447,453.66/2,990.82
  6. Step 6: Final answer
    x = 3,493.17

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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.