Home / 3,188.44-4,400.23-1,791.28

Finding the Fourth Proportional to 3,188.44, 4,400.23 and 1,791.28

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Solution

The fourth proportional to 3,188.44, 4,400.23 and 1,791.28 is: 2,472.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.44 : 4,400.23 = 1,791.28 : x
  2. Step 2: Convert to fraction form
    3,188.44/4,400.23 = 1,791.28/x
  3. Step 3: Cross multiply
    3,188.44x = 4,400.23 × 1,791.28
  4. Step 4: Simplify right side
    3,188.44x = 7,882,043.99
  5. Step 5: Solve for x
    x = 7,882,043.99/3,188.44
  6. Step 6: Final answer
    x = 2,472.07

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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.