Home / 1,896.48-2,840.88-1,276.92

Finding the Fourth Proportional to 1,896.48, 2,840.88 and 1,276.92

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Solution

The fourth proportional to 1,896.48, 2,840.88 and 1,276.92 is: 1,912.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.48 : 2,840.88 = 1,276.92 : x
  2. Step 2: Convert to fraction form
    1,896.48/2,840.88 = 1,276.92/x
  3. Step 3: Cross multiply
    1,896.48x = 2,840.88 × 1,276.92
  4. Step 4: Simplify right side
    1,896.48x = 3,627,576.49
  5. Step 5: Solve for x
    x = 3,627,576.49/1,896.48
  6. Step 6: Final answer
    x = 1,912.79

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1.5x scale

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.