Home / 2,151.88-3,226.32-1,111.44

Finding the Fourth Proportional to 2,151.88, 3,226.32 and 1,111.44

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Solution

The fourth proportional to 2,151.88, 3,226.32 and 1,111.44 is: 1,666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.88 : 3,226.32 = 1,111.44 : x
  2. Step 2: Convert to fraction form
    2,151.88/3,226.32 = 1,111.44/x
  3. Step 3: Cross multiply
    2,151.88x = 3,226.32 × 1,111.44
  4. Step 4: Simplify right side
    2,151.88x = 3,585,861.10
  5. Step 5: Solve for x
    x = 3,585,861.10/2,151.88
  6. Step 6: Final answer
    x = 1,666.39

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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.