Home / 5,169.19-7,133.55-2,811.37

Finding the Fourth Proportional to 5,169.19, 7,133.55 and 2,811.37

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Solution

The fourth proportional to 5,169.19, 7,133.55 and 2,811.37 is: 3,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.19 : 7,133.55 = 2,811.37 : x
  2. Step 2: Convert to fraction form
    5,169.19/7,133.55 = 2,811.37/x
  3. Step 3: Cross multiply
    5,169.19x = 7,133.55 × 2,811.37
  4. Step 4: Simplify right side
    5,169.19x = 20,055,048.46
  5. Step 5: Solve for x
    x = 20,055,048.46/5,169.19
  6. Step 6: Final answer
    x = 3,879.73

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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.