Home / 7,212.20-10,816.47-2,768.94

Finding the Fourth Proportional to 7,212.20, 10,816.47 and 2,768.94

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Solution

The fourth proportional to 7,212.20, 10,816.47 and 2,768.94 is: 4,152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.20 : 10,816.47 = 2,768.94 : x
  2. Step 2: Convert to fraction form
    7,212.20/10,816.47 = 2,768.94/x
  3. Step 3: Cross multiply
    7,212.20x = 10,816.47 × 2,768.94
  4. Step 4: Simplify right side
    7,212.20x = 29,950,156.44
  5. Step 5: Solve for x
    x = 29,950,156.44/7,212.20
  6. Step 6: Final answer
    x = 4,152.71

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1.5x scale

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.