Home / 5,111.77-7,054.38-2,873.85

Finding the Fourth Proportional to 5,111.77, 7,054.38 and 2,873.85

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Solution

The fourth proportional to 5,111.77, 7,054.38 and 2,873.85 is: 3,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.77 : 7,054.38 = 2,873.85 : x
  2. Step 2: Convert to fraction form
    5,111.77/7,054.38 = 2,873.85/x
  3. Step 3: Cross multiply
    5,111.77x = 7,054.38 × 2,873.85
  4. Step 4: Simplify right side
    5,111.77x = 20,273,229.96
  5. Step 5: Solve for x
    x = 20,273,229.96/5,111.77
  6. Step 6: Final answer
    x = 3,965.99

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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.