Home / 3,288.80-4,933.76-1,340.96

Finding the Fourth Proportional to 3,288.80, 4,933.76 and 1,340.96

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Solution

The fourth proportional to 3,288.80, 4,933.76 and 1,340.96 is: 2,011.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.80 : 4,933.76 = 1,340.96 : x
  2. Step 2: Convert to fraction form
    3,288.80/4,933.76 = 1,340.96/x
  3. Step 3: Cross multiply
    3,288.80x = 4,933.76 × 1,340.96
  4. Step 4: Simplify right side
    3,288.80x = 6,615,974.81
  5. Step 5: Solve for x
    x = 6,615,974.81/3,288.80
  6. Step 6: Final answer
    x = 2,011.67

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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.