Home / 3,279.21-4,916.99-1,086.75

Finding the Fourth Proportional to 3,279.21, 4,916.99 and 1,086.75

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Solution

The fourth proportional to 3,279.21, 4,916.99 and 1,086.75 is: 1,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.21 : 4,916.99 = 1,086.75 : x
  2. Step 2: Convert to fraction form
    3,279.21/4,916.99 = 1,086.75/x
  3. Step 3: Cross multiply
    3,279.21x = 4,916.99 × 1,086.75
  4. Step 4: Simplify right side
    3,279.21x = 5,343,533.45
  5. Step 5: Solve for x
    x = 5,343,533.45/3,279.21
  6. Step 6: Final answer
    x = 1,629.52

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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.