Home / 7,622.24-11,427.94-2,938.28

Finding the Fourth Proportional to 7,622.24, 11,427.94 and 2,938.28

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Solution

The fourth proportional to 7,622.24, 11,427.94 and 2,938.28 is: 4,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.24 : 11,427.94 = 2,938.28 : x
  2. Step 2: Convert to fraction form
    7,622.24/11,427.94 = 2,938.28/x
  3. Step 3: Cross multiply
    7,622.24x = 11,427.94 × 2,938.28
  4. Step 4: Simplify right side
    7,622.24x = 33,578,487.54
  5. Step 5: Solve for x
    x = 33,578,487.54/7,622.24
  6. Step 6: Final answer
    x = 4,405.33

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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.