Home / 2,151.06-3,221.11-1,418.41

Finding the Fourth Proportional to 2,151.06, 3,221.11 and 1,418.41

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Solution

The fourth proportional to 2,151.06, 3,221.11 and 1,418.41 is: 2,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.06 : 3,221.11 = 1,418.41 : x
  2. Step 2: Convert to fraction form
    2,151.06/3,221.11 = 1,418.41/x
  3. Step 3: Cross multiply
    2,151.06x = 3,221.11 × 1,418.41
  4. Step 4: Simplify right side
    2,151.06x = 4,568,854.64
  5. Step 5: Solve for x
    x = 4,568,854.64/2,151.06
  6. Step 6: Final answer
    x = 2,124.00

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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.