Home / 3,326.05-4,980.16-1,861.03

Finding the Fourth Proportional to 3,326.05, 4,980.16 and 1,861.03

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Solution

The fourth proportional to 3,326.05, 4,980.16 and 1,861.03 is: 2,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.05 : 4,980.16 = 1,861.03 : x
  2. Step 2: Convert to fraction form
    3,326.05/4,980.16 = 1,861.03/x
  3. Step 3: Cross multiply
    3,326.05x = 4,980.16 × 1,861.03
  4. Step 4: Simplify right side
    3,326.05x = 9,268,227.16
  5. Step 5: Solve for x
    x = 9,268,227.16/3,326.05
  6. Step 6: Final answer
    x = 2,786.56

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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.