Home / 3,105.28-4,259.03-2,755.36

Finding the Fourth Proportional to 3,105.28, 4,259.03 and 2,755.36

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Solution

The fourth proportional to 3,105.28, 4,259.03 and 2,755.36 is: 3,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.28 : 4,259.03 = 2,755.36 : x
  2. Step 2: Convert to fraction form
    3,105.28/4,259.03 = 2,755.36/x
  3. Step 3: Cross multiply
    3,105.28x = 4,259.03 × 2,755.36
  4. Step 4: Simplify right side
    3,105.28x = 11,735,160.90
  5. Step 5: Solve for x
    x = 11,735,160.90/3,105.28
  6. Step 6: Final answer
    x = 3,779.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.