Home / 6,422.05-9,620.70-3,453.22

Finding the Fourth Proportional to 6,422.05, 9,620.70 and 3,453.22

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Solution

The fourth proportional to 6,422.05, 9,620.70 and 3,453.22 is: 5,173.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.05 : 9,620.70 = 3,453.22 : x
  2. Step 2: Convert to fraction form
    6,422.05/9,620.70 = 3,453.22/x
  3. Step 3: Cross multiply
    6,422.05x = 9,620.70 × 3,453.22
  4. Step 4: Simplify right side
    6,422.05x = 33,222,393.65
  5. Step 5: Solve for x
    x = 33,222,393.65/6,422.05
  6. Step 6: Final answer
    x = 5,173.18

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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.