Home / 5,399.92-7,449.34-3,160.41

Finding the Fourth Proportional to 5,399.92, 7,449.34 and 3,160.41

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Solution

The fourth proportional to 5,399.92, 7,449.34 and 3,160.41 is: 4,359.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.92 : 7,449.34 = 3,160.41 : x
  2. Step 2: Convert to fraction form
    5,399.92/7,449.34 = 3,160.41/x
  3. Step 3: Cross multiply
    5,399.92x = 7,449.34 × 3,160.41
  4. Step 4: Simplify right side
    5,399.92x = 23,542,968.63
  5. Step 5: Solve for x
    x = 23,542,968.63/5,399.92
  6. Step 6: Final answer
    x = 4,359.87

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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.