Home / 2,285.09-3,428.70-1,243.85

Finding the Fourth Proportional to 2,285.09, 3,428.70 and 1,243.85

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Solution

The fourth proportional to 2,285.09, 3,428.70 and 1,243.85 is: 1,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.09 : 3,428.70 = 1,243.85 : x
  2. Step 2: Convert to fraction form
    2,285.09/3,428.70 = 1,243.85/x
  3. Step 3: Cross multiply
    2,285.09x = 3,428.70 × 1,243.85
  4. Step 4: Simplify right side
    2,285.09x = 4,264,797.07
  5. Step 5: Solve for x
    x = 4,264,797.07/2,285.09
  6. Step 6: Final answer
    x = 1,866.36

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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.