Home / 5,271.15-7,906.73-2,149.21

Finding the Fourth Proportional to 5,271.15, 7,906.73 and 2,149.21

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Solution

The fourth proportional to 5,271.15, 7,906.73 and 2,149.21 is: 3,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.15 : 7,906.73 = 2,149.21 : x
  2. Step 2: Convert to fraction form
    5,271.15/7,906.73 = 2,149.21/x
  3. Step 3: Cross multiply
    5,271.15x = 7,906.73 × 2,149.21
  4. Step 4: Simplify right side
    5,271.15x = 16,993,192.67
  5. Step 5: Solve for x
    x = 16,993,192.67/5,271.15
  6. Step 6: Final answer
    x = 3,223.81

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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.