Home / 2,822.49-4,231.22-1,435.05

Finding the Fourth Proportional to 2,822.49, 4,231.22 and 1,435.05

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Solution

The fourth proportional to 2,822.49, 4,231.22 and 1,435.05 is: 2,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.49 : 4,231.22 = 1,435.05 : x
  2. Step 2: Convert to fraction form
    2,822.49/4,231.22 = 1,435.05/x
  3. Step 3: Cross multiply
    2,822.49x = 4,231.22 × 1,435.05
  4. Step 4: Simplify right side
    2,822.49x = 6,072,005.09
  5. Step 5: Solve for x
    x = 6,072,005.09/2,822.49
  6. Step 6: Final answer
    x = 2,151.29

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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.