Home / 7,229.69-10,845.26-1,964.78

Finding the Fourth Proportional to 7,229.69, 10,845.26 and 1,964.78

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Solution

The fourth proportional to 7,229.69, 10,845.26 and 1,964.78 is: 2,947.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.69 : 10,845.26 = 1,964.78 : x
  2. Step 2: Convert to fraction form
    7,229.69/10,845.26 = 1,964.78/x
  3. Step 3: Cross multiply
    7,229.69x = 10,845.26 × 1,964.78
  4. Step 4: Simplify right side
    7,229.69x = 21,308,549.94
  5. Step 5: Solve for x
    x = 21,308,549.94/7,229.69
  6. Step 6: Final answer
    x = 2,947.37

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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.