Home / 2,811.08-3,879.18-1,552.02

Finding the Fourth Proportional to 2,811.08, 3,879.18 and 1,552.02

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Solution

The fourth proportional to 2,811.08, 3,879.18 and 1,552.02 is: 2,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.08 : 3,879.18 = 1,552.02 : x
  2. Step 2: Convert to fraction form
    2,811.08/3,879.18 = 1,552.02/x
  3. Step 3: Cross multiply
    2,811.08x = 3,879.18 × 1,552.02
  4. Step 4: Simplify right side
    2,811.08x = 6,020,564.94
  5. Step 5: Solve for x
    x = 6,020,564.94/2,811.08
  6. Step 6: Final answer
    x = 2,141.73

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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.