Home / 2,114.05-3,170.37-727.35

Finding the Fourth Proportional to 2,114.05, 3,170.37 and 727.35

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Solution

The fourth proportional to 2,114.05, 3,170.37 and 727.35 is: 1,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.05 : 3,170.37 = 727.35 : x
  2. Step 2: Convert to fraction form
    2,114.05/3,170.37 = 727.35/x
  3. Step 3: Cross multiply
    2,114.05x = 3,170.37 × 727.35
  4. Step 4: Simplify right side
    2,114.05x = 2,305,968.62
  5. Step 5: Solve for x
    x = 2,305,968.62/2,114.05
  6. Step 6: Final answer
    x = 1,090.78

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1.5x scale

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.