Home / 7,271.91-10,908.41-2,078.19

Finding the Fourth Proportional to 7,271.91, 10,908.41 and 2,078.19

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Solution

The fourth proportional to 7,271.91, 10,908.41 and 2,078.19 is: 3,117.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.91 : 10,908.41 = 2,078.19 : x
  2. Step 2: Convert to fraction form
    7,271.91/10,908.41 = 2,078.19/x
  3. Step 3: Cross multiply
    7,271.91x = 10,908.41 × 2,078.19
  4. Step 4: Simplify right side
    7,271.91x = 22,669,738.19
  5. Step 5: Solve for x
    x = 22,669,738.19/7,271.91
  6. Step 6: Final answer
    x = 3,117.44

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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.