Home / 1,896.34-2,842.75-1,200.90

Finding the Fourth Proportional to 1,896.34, 2,842.75 and 1,200.90

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Solution

The fourth proportional to 1,896.34, 2,842.75 and 1,200.90 is: 1,800.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.34 : 2,842.75 = 1,200.90 : x
  2. Step 2: Convert to fraction form
    1,896.34/2,842.75 = 1,200.90/x
  3. Step 3: Cross multiply
    1,896.34x = 2,842.75 × 1,200.90
  4. Step 4: Simplify right side
    1,896.34x = 3,413,851.37
  5. Step 5: Solve for x
    x = 3,413,851.37/1,896.34
  6. Step 6: Final answer
    x = 1,800.24

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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.