Home / 3,189.03-4,400.83-1,791.78

Finding the Fourth Proportional to 3,189.03, 4,400.83 and 1,791.78

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Solution

The fourth proportional to 3,189.03, 4,400.83 and 1,791.78 is: 2,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.03 : 4,400.83 = 1,791.78 : x
  2. Step 2: Convert to fraction form
    3,189.03/4,400.83 = 1,791.78/x
  3. Step 3: Cross multiply
    3,189.03x = 4,400.83 × 1,791.78
  4. Step 4: Simplify right side
    3,189.03x = 7,885,297.17
  5. Step 5: Solve for x
    x = 7,885,297.17/3,189.03
  6. Step 6: Final answer
    x = 2,472.64

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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.