Home / 2,771.34-4,146.67-1,661.37

Finding the Fourth Proportional to 2,771.34, 4,146.67 and 1,661.37

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Solution

The fourth proportional to 2,771.34, 4,146.67 and 1,661.37 is: 2,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.34 : 4,146.67 = 1,661.37 : x
  2. Step 2: Convert to fraction form
    2,771.34/4,146.67 = 1,661.37/x
  3. Step 3: Cross multiply
    2,771.34x = 4,146.67 × 1,661.37
  4. Step 4: Simplify right side
    2,771.34x = 6,889,153.14
  5. Step 5: Solve for x
    x = 6,889,153.14/2,771.34
  6. Step 6: Final answer
    x = 2,485.86

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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.