Home / 5,275.44-7,280.12-3,179.97

Finding the Fourth Proportional to 5,275.44, 7,280.12 and 3,179.97

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Solution

The fourth proportional to 5,275.44, 7,280.12 and 3,179.97 is: 4,388.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.44 : 7,280.12 = 3,179.97 : x
  2. Step 2: Convert to fraction form
    5,275.44/7,280.12 = 3,179.97/x
  3. Step 3: Cross multiply
    5,275.44x = 7,280.12 × 3,179.97
  4. Step 4: Simplify right side
    5,275.44x = 23,150,563.20
  5. Step 5: Solve for x
    x = 23,150,563.20/5,275.44
  6. Step 6: Final answer
    x = 4,388.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.