Home / 7,173.56-10,761.26-1,979.44

Finding the Fourth Proportional to 7,173.56, 10,761.26 and 1,979.44

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Solution

The fourth proportional to 7,173.56, 10,761.26 and 1,979.44 is: 2,969.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.56 : 10,761.26 = 1,979.44 : x
  2. Step 2: Convert to fraction form
    7,173.56/10,761.26 = 1,979.44/x
  3. Step 3: Cross multiply
    7,173.56x = 10,761.26 × 1,979.44
  4. Step 4: Simplify right side
    7,173.56x = 21,301,231.69
  5. Step 5: Solve for x
    x = 21,301,231.69/7,173.56
  6. Step 6: Final answer
    x = 2,969.41

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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.