Home / 3,071.06-4,236.78-1,811.61

Finding the Fourth Proportional to 3,071.06, 4,236.78 and 1,811.61

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Solution

The fourth proportional to 3,071.06, 4,236.78 and 1,811.61 is: 2,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.06 : 4,236.78 = 1,811.61 : x
  2. Step 2: Convert to fraction form
    3,071.06/4,236.78 = 1,811.61/x
  3. Step 3: Cross multiply
    3,071.06x = 4,236.78 × 1,811.61
  4. Step 4: Simplify right side
    3,071.06x = 7,675,393.02
  5. Step 5: Solve for x
    x = 7,675,393.02/3,071.06
  6. Step 6: Final answer
    x = 2,499.27

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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.