Home / 2,170.07-3,241.91-1,383.81

Finding the Fourth Proportional to 2,170.07, 3,241.91 and 1,383.81

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Solution

The fourth proportional to 2,170.07, 3,241.91 and 1,383.81 is: 2,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.07 : 3,241.91 = 1,383.81 : x
  2. Step 2: Convert to fraction form
    2,170.07/3,241.91 = 1,383.81/x
  3. Step 3: Cross multiply
    2,170.07x = 3,241.91 × 1,383.81
  4. Step 4: Simplify right side
    2,170.07x = 4,486,187.48
  5. Step 5: Solve for x
    x = 4,486,187.48/2,170.07
  6. Step 6: Final answer
    x = 2,067.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.