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Finding the Fourth Proportional to 5,169.01, 7,133.16 and 2,811.10

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Solution

The fourth proportional to 5,169.01, 7,133.16 and 2,811.10 is: 3,879.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.01 : 7,133.16 = 2,811.10 : x
  2. Step 2: Convert to fraction form
    5,169.01/7,133.16 = 2,811.10/x
  3. Step 3: Cross multiply
    5,169.01x = 7,133.16 × 2,811.10
  4. Step 4: Simplify right side
    5,169.01x = 20,052,026.08
  5. Step 5: Solve for x
    x = 20,052,026.08/5,169.01
  6. Step 6: Final answer
    x = 3,879.28

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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.