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Finding the Fourth Proportional to 7,201.94, 10,803.81 and 2,818.83

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Solution

The fourth proportional to 7,201.94, 10,803.81 and 2,818.83 is: 4,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.94 : 10,803.81 = 2,818.83 : x
  2. Step 2: Convert to fraction form
    7,201.94/10,803.81 = 2,818.83/x
  3. Step 3: Cross multiply
    7,201.94x = 10,803.81 × 2,818.83
  4. Step 4: Simplify right side
    7,201.94x = 30,454,103.74
  5. Step 5: Solve for x
    x = 30,454,103.74/7,201.94
  6. Step 6: Final answer
    x = 4,228.60

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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.