Home / 5,388.30-8,069.55-3,190.38

Finding the Fourth Proportional to 5,388.30, 8,069.55 and 3,190.38

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Solution

The fourth proportional to 5,388.30, 8,069.55 and 3,190.38 is: 4,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.30 : 8,069.55 = 3,190.38 : x
  2. Step 2: Convert to fraction form
    5,388.30/8,069.55 = 3,190.38/x
  3. Step 3: Cross multiply
    5,388.30x = 8,069.55 × 3,190.38
  4. Step 4: Simplify right side
    5,388.30x = 25,744,930.93
  5. Step 5: Solve for x
    x = 25,744,930.93/5,388.30
  6. Step 6: Final answer
    x = 4,777.93

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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.