Home / 2,771.26-4,154.16-1,128.96

Finding the Fourth Proportional to 2,771.26, 4,154.16 and 1,128.96

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Solution

The fourth proportional to 2,771.26, 4,154.16 and 1,128.96 is: 1,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.26 : 4,154.16 = 1,128.96 : x
  2. Step 2: Convert to fraction form
    2,771.26/4,154.16 = 1,128.96/x
  3. Step 3: Cross multiply
    2,771.26x = 4,154.16 × 1,128.96
  4. Step 4: Simplify right side
    2,771.26x = 4,689,893.22
  5. Step 5: Solve for x
    x = 4,689,893.22/2,771.26
  6. Step 6: Final answer
    x = 1,692.33

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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.