Home / 5,271.76-7,906.44-2,153.92

Finding the Fourth Proportional to 5,271.76, 7,906.44 and 2,153.92

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Solution

The fourth proportional to 5,271.76, 7,906.44 and 2,153.92 is: 3,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.76 : 7,906.44 = 2,153.92 : x
  2. Step 2: Convert to fraction form
    5,271.76/7,906.44 = 2,153.92/x
  3. Step 3: Cross multiply
    5,271.76x = 7,906.44 × 2,153.92
  4. Step 4: Simplify right side
    5,271.76x = 17,029,839.24
  5. Step 5: Solve for x
    x = 17,029,839.24/5,271.76
  6. Step 6: Final answer
    x = 3,230.39

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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.