Home / 7,135.76-10,704.20-1,941.52

Finding the Fourth Proportional to 7,135.76, 10,704.20 and 1,941.52

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Solution

The fourth proportional to 7,135.76, 10,704.20 and 1,941.52 is: 2,912.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.76 : 10,704.20 = 1,941.52 : x
  2. Step 2: Convert to fraction form
    7,135.76/10,704.20 = 1,941.52/x
  3. Step 3: Cross multiply
    7,135.76x = 10,704.20 × 1,941.52
  4. Step 4: Simplify right side
    7,135.76x = 20,782,418.38
  5. Step 5: Solve for x
    x = 20,782,418.38/7,135.76
  6. Step 6: Final answer
    x = 2,912.43

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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.