Home / 2,811.09-4,211.83-1,575.44

Finding the Fourth Proportional to 2,811.09, 4,211.83 and 1,575.44

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Solution

The fourth proportional to 2,811.09, 4,211.83 and 1,575.44 is: 2,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.09 : 4,211.83 = 1,575.44 : x
  2. Step 2: Convert to fraction form
    2,811.09/4,211.83 = 1,575.44/x
  3. Step 3: Cross multiply
    2,811.09x = 4,211.83 × 1,575.44
  4. Step 4: Simplify right side
    2,811.09x = 6,635,485.46
  5. Step 5: Solve for x
    x = 6,635,485.46/2,811.09
  6. Step 6: Final answer
    x = 2,360.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.