Home / 6,814.87-10,221.28-2,133.79

Finding the Fourth Proportional to 6,814.87, 10,221.28 and 2,133.79

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Solution

The fourth proportional to 6,814.87, 10,221.28 and 2,133.79 is: 3,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,814.87 : 10,221.28 = 2,133.79 : x
  2. Step 2: Convert to fraction form
    6,814.87/10,221.28 = 2,133.79/x
  3. Step 3: Cross multiply
    6,814.87x = 10,221.28 × 2,133.79
  4. Step 4: Simplify right side
    6,814.87x = 21,810,065.05
  5. Step 5: Solve for x
    x = 21,810,065.05/6,814.87
  6. Step 6: Final answer
    x = 3,200.36

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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.