Home / 7,409.21-11,113.82-2,968.88

Finding the Fourth Proportional to 7,409.21, 11,113.82 and 2,968.88

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Solution

The fourth proportional to 7,409.21, 11,113.82 and 2,968.88 is: 4,453.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.21 : 11,113.82 = 2,968.88 : x
  2. Step 2: Convert to fraction form
    7,409.21/11,113.82 = 2,968.88/x
  3. Step 3: Cross multiply
    7,409.21x = 11,113.82 × 2,968.88
  4. Step 4: Simplify right side
    7,409.21x = 32,995,527.51
  5. Step 5: Solve for x
    x = 32,995,527.51/7,409.21
  6. Step 6: Final answer
    x = 4,453.32

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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.