Home / 5,409.92-8,109.76-2,633.44

Finding the Fourth Proportional to 5,409.92, 8,109.76 and 2,633.44

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Solution

The fourth proportional to 5,409.92, 8,109.76 and 2,633.44 is: 3,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.92 : 8,109.76 = 2,633.44 : x
  2. Step 2: Convert to fraction form
    5,409.92/8,109.76 = 2,633.44/x
  3. Step 3: Cross multiply
    5,409.92x = 8,109.76 × 2,633.44
  4. Step 4: Simplify right side
    5,409.92x = 21,356,566.37
  5. Step 5: Solve for x
    x = 21,356,566.37/5,409.92
  6. Step 6: Final answer
    x = 3,947.67

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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.