Home / 5,187.92-7,158.78-3,199.37

Finding the Fourth Proportional to 5,187.92, 7,158.78 and 3,199.37

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Solution

The fourth proportional to 5,187.92, 7,158.78 and 3,199.37 is: 4,414.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.92 : 7,158.78 = 3,199.37 : x
  2. Step 2: Convert to fraction form
    5,187.92/7,158.78 = 3,199.37/x
  3. Step 3: Cross multiply
    5,187.92x = 7,158.78 × 3,199.37
  4. Step 4: Simplify right side
    5,187.92x = 22,903,550.17
  5. Step 5: Solve for x
    x = 22,903,550.17/5,187.92
  6. Step 6: Final answer
    x = 4,414.79

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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.