Home / 3,128.43-4,692.63-1,255.16

Finding the Fourth Proportional to 3,128.43, 4,692.63 and 1,255.16

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Solution

The fourth proportional to 3,128.43, 4,692.63 and 1,255.16 is: 1,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.43 : 4,692.63 = 1,255.16 : x
  2. Step 2: Convert to fraction form
    3,128.43/4,692.63 = 1,255.16/x
  3. Step 3: Cross multiply
    3,128.43x = 4,692.63 × 1,255.16
  4. Step 4: Simplify right side
    3,128.43x = 5,889,978.01
  5. Step 5: Solve for x
    x = 5,889,978.01/3,128.43
  6. Step 6: Final answer
    x = 1,882.73

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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.