Home / 5,418.06-7,476.96-3,321.78

Finding the Fourth Proportional to 5,418.06, 7,476.96 and 3,321.78

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Solution

The fourth proportional to 5,418.06, 7,476.96 and 3,321.78 is: 4,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.06 : 7,476.96 = 3,321.78 : x
  2. Step 2: Convert to fraction form
    5,418.06/7,476.96 = 3,321.78/x
  3. Step 3: Cross multiply
    5,418.06x = 7,476.96 × 3,321.78
  4. Step 4: Simplify right side
    5,418.06x = 24,836,816.19
  5. Step 5: Solve for x
    x = 24,836,816.19/5,418.06
  6. Step 6: Final answer
    x = 4,584.08

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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.