Home / 3,279.34-4,912.58-2,165.36

Finding the Fourth Proportional to 3,279.34, 4,912.58 and 2,165.36

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Solution

The fourth proportional to 3,279.34, 4,912.58 and 2,165.36 is: 3,243.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.34 : 4,912.58 = 2,165.36 : x
  2. Step 2: Convert to fraction form
    3,279.34/4,912.58 = 2,165.36/x
  3. Step 3: Cross multiply
    3,279.34x = 4,912.58 × 2,165.36
  4. Step 4: Simplify right side
    3,279.34x = 10,637,504.23
  5. Step 5: Solve for x
    x = 10,637,504.23/3,279.34
  6. Step 6: Final answer
    x = 3,243.79

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1.5x scale

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.