Home / 4,155.36-5,734.80-3,105.60

Finding the Fourth Proportional to 4,155.36, 5,734.80 and 3,105.60

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Solution

The fourth proportional to 4,155.36, 5,734.80 and 3,105.60 is: 4,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.36 : 5,734.80 = 3,105.60 : x
  2. Step 2: Convert to fraction form
    4,155.36/5,734.80 = 3,105.60/x
  3. Step 3: Cross multiply
    4,155.36x = 5,734.80 × 3,105.60
  4. Step 4: Simplify right side
    4,155.36x = 17,809,994.88
  5. Step 5: Solve for x
    x = 17,809,994.88/4,155.36
  6. Step 6: Final answer
    x = 4,286.03

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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.