Home / 5,740.40-7,922.16-3,222.75

Finding the Fourth Proportional to 5,740.40, 7,922.16 and 3,222.75

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Solution

The fourth proportional to 5,740.40, 7,922.16 and 3,222.75 is: 4,447.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.40 : 7,922.16 = 3,222.75 : x
  2. Step 2: Convert to fraction form
    5,740.40/7,922.16 = 3,222.75/x
  3. Step 3: Cross multiply
    5,740.40x = 7,922.16 × 3,222.75
  4. Step 4: Simplify right side
    5,740.40x = 25,531,141.14
  5. Step 5: Solve for x
    x = 25,531,141.14/5,740.40
  6. Step 6: Final answer
    x = 4,447.62

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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.