Home / 3,108.56-4,287.87-2,735.55

Finding the Fourth Proportional to 3,108.56, 4,287.87 and 2,735.55

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Solution

The fourth proportional to 3,108.56, 4,287.87 and 2,735.55 is: 3,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.56 : 4,287.87 = 2,735.55 : x
  2. Step 2: Convert to fraction form
    3,108.56/4,287.87 = 2,735.55/x
  3. Step 3: Cross multiply
    3,108.56x = 4,287.87 × 2,735.55
  4. Step 4: Simplify right side
    3,108.56x = 11,729,682.78
  5. Step 5: Solve for x
    x = 11,729,682.78/3,108.56
  6. Step 6: Final answer
    x = 3,773.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.