Home / 5,169.30-7,133.42-2,811.44

Finding the Fourth Proportional to 5,169.30, 7,133.42 and 2,811.44

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Solution

The fourth proportional to 5,169.30, 7,133.42 and 2,811.44 is: 3,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.30 : 7,133.42 = 2,811.44 : x
  2. Step 2: Convert to fraction form
    5,169.30/7,133.42 = 2,811.44/x
  3. Step 3: Cross multiply
    5,169.30x = 7,133.42 × 2,811.44
  4. Step 4: Simplify right side
    5,169.30x = 20,055,132.60
  5. Step 5: Solve for x
    x = 20,055,132.60/5,169.30
  6. Step 6: Final answer
    x = 3,879.66

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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.