Home / 6,811.22-9,401.42-3,979.24

Finding the Fourth Proportional to 6,811.22, 9,401.42 and 3,979.24

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Solution

The fourth proportional to 6,811.22, 9,401.42 and 3,979.24 is: 5,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.22 : 9,401.42 = 3,979.24 : x
  2. Step 2: Convert to fraction form
    6,811.22/9,401.42 = 3,979.24/x
  3. Step 3: Cross multiply
    6,811.22x = 9,401.42 × 3,979.24
  4. Step 4: Simplify right side
    6,811.22x = 37,410,506.52
  5. Step 5: Solve for x
    x = 37,410,506.52/6,811.22
  6. Step 6: Final answer
    x = 5,492.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.