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Finding the Fourth Proportional to 7,260.44, 10,891.20 and 3,099.20

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Solution

The fourth proportional to 7,260.44, 10,891.20 and 3,099.20 is: 4,649.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,260.44 : 10,891.20 = 3,099.20 : x
  2. Step 2: Convert to fraction form
    7,260.44/10,891.20 = 3,099.20/x
  3. Step 3: Cross multiply
    7,260.44x = 10,891.20 × 3,099.20
  4. Step 4: Simplify right side
    7,260.44x = 33,754,007.04
  5. Step 5: Solve for x
    x = 33,754,007.04/7,260.44
  6. Step 6: Final answer
    x = 4,649.03

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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.