Home / 6,811.24-10,214.70-2,131.06

Finding the Fourth Proportional to 6,811.24, 10,214.70 and 2,131.06

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Solution

The fourth proportional to 6,811.24, 10,214.70 and 2,131.06 is: 3,195.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.24 : 10,214.70 = 2,131.06 : x
  2. Step 2: Convert to fraction form
    6,811.24/10,214.70 = 2,131.06/x
  3. Step 3: Cross multiply
    6,811.24x = 10,214.70 × 2,131.06
  4. Step 4: Simplify right side
    6,811.24x = 21,768,138.58
  5. Step 5: Solve for x
    x = 21,768,138.58/6,811.24
  6. Step 6: Final answer
    x = 3,195.91

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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.