Home / 5,188.96-7,158.44-3,198.79

Finding the Fourth Proportional to 5,188.96, 7,158.44 and 3,198.79

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Solution

The fourth proportional to 5,188.96, 7,158.44 and 3,198.79 is: 4,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.96 : 7,158.44 = 3,198.79 : x
  2. Step 2: Convert to fraction form
    5,188.96/7,158.44 = 3,198.79/x
  3. Step 3: Cross multiply
    5,188.96x = 7,158.44 × 3,198.79
  4. Step 4: Simplify right side
    5,188.96x = 22,898,346.29
  5. Step 5: Solve for x
    x = 22,898,346.29/5,188.96
  6. Step 6: Final answer
    x = 4,412.90

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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.