Home / 6,820.66-10,221.27-3,899.80

Finding the Fourth Proportional to 6,820.66, 10,221.27 and 3,899.80

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Solution

The fourth proportional to 6,820.66, 10,221.27 and 3,899.80 is: 5,844.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.66 : 10,221.27 = 3,899.80 : x
  2. Step 2: Convert to fraction form
    6,820.66/10,221.27 = 3,899.80/x
  3. Step 3: Cross multiply
    6,820.66x = 10,221.27 × 3,899.80
  4. Step 4: Simplify right side
    6,820.66x = 39,860,908.75
  5. Step 5: Solve for x
    x = 39,860,908.75/6,820.66
  6. Step 6: Final answer
    x = 5,844.14

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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.