Home / 7,409.44-11,119.20-3,949.12

Finding the Fourth Proportional to 7,409.44, 11,119.20 and 3,949.12

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Solution

The fourth proportional to 7,409.44, 11,119.20 and 3,949.12 is: 5,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.44 : 11,119.20 = 3,949.12 : x
  2. Step 2: Convert to fraction form
    7,409.44/11,119.20 = 3,949.12/x
  3. Step 3: Cross multiply
    7,409.44x = 11,119.20 × 3,949.12
  4. Step 4: Simplify right side
    7,409.44x = 43,911,055.10
  5. Step 5: Solve for x
    x = 43,911,055.10/7,409.44
  6. Step 6: Final answer
    x = 5,926.37

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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.