Home / 6,828.40-10,241.20-1,896.80

Finding the Fourth Proportional to 6,828.40, 10,241.20 and 1,896.80

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Solution

The fourth proportional to 6,828.40, 10,241.20 and 1,896.80 is: 2,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,828.40 : 10,241.20 = 1,896.80 : x
  2. Step 2: Convert to fraction form
    6,828.40/10,241.20 = 1,896.80/x
  3. Step 3: Cross multiply
    6,828.40x = 10,241.20 × 1,896.80
  4. Step 4: Simplify right side
    6,828.40x = 19,425,508.16
  5. Step 5: Solve for x
    x = 19,425,508.16/6,828.40
  6. Step 6: Final answer
    x = 2,844.81

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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.