Home / 5,169.16-7,133.45-2,811.29

Finding the Fourth Proportional to 5,169.16, 7,133.45 and 2,811.29

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Solution

The fourth proportional to 5,169.16, 7,133.45 and 2,811.29 is: 3,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.16 : 7,133.45 = 2,811.29 : x
  2. Step 2: Convert to fraction form
    5,169.16/7,133.45 = 2,811.29/x
  3. Step 3: Cross multiply
    5,169.16x = 7,133.45 × 2,811.29
  4. Step 4: Simplify right side
    5,169.16x = 20,054,200.43
  5. Step 5: Solve for x
    x = 20,054,200.43/5,169.16
  6. Step 6: Final answer
    x = 3,879.59

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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.