Home / 6,816.81-10,221.51-2,134.80

Finding the Fourth Proportional to 6,816.81, 10,221.51 and 2,134.80

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Solution

The fourth proportional to 6,816.81, 10,221.51 and 2,134.80 is: 3,201.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816.81 : 10,221.51 = 2,134.80 : x
  2. Step 2: Convert to fraction form
    6,816.81/10,221.51 = 2,134.80/x
  3. Step 3: Cross multiply
    6,816.81x = 10,221.51 × 2,134.80
  4. Step 4: Simplify right side
    6,816.81x = 21,820,879.55
  5. Step 5: Solve for x
    x = 21,820,879.55/6,816.81
  6. Step 6: Final answer
    x = 3,201.04

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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.