Home / 5,135.14-7,715.04-3,289.84

Finding the Fourth Proportional to 5,135.14, 7,715.04 and 3,289.84

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Solution

The fourth proportional to 5,135.14, 7,715.04 and 3,289.84 is: 4,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.14 : 7,715.04 = 3,289.84 : x
  2. Step 2: Convert to fraction form
    5,135.14/7,715.04 = 3,289.84/x
  3. Step 3: Cross multiply
    5,135.14x = 7,715.04 × 3,289.84
  4. Step 4: Simplify right side
    5,135.14x = 25,381,247.19
  5. Step 5: Solve for x
    x = 25,381,247.19/5,135.14
  6. Step 6: Final answer
    x = 4,942.66

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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.