Home / 5,921.87-8,880.57-2,172.42

Finding the Fourth Proportional to 5,921.87, 8,880.57 and 2,172.42

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Solution

The fourth proportional to 5,921.87, 8,880.57 and 2,172.42 is: 3,257.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.87 : 8,880.57 = 2,172.42 : x
  2. Step 2: Convert to fraction form
    5,921.87/8,880.57 = 2,172.42/x
  3. Step 3: Cross multiply
    5,921.87x = 8,880.57 × 2,172.42
  4. Step 4: Simplify right side
    5,921.87x = 19,292,327.88
  5. Step 5: Solve for x
    x = 19,292,327.88/5,921.87
  6. Step 6: Final answer
    x = 3,257.81

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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.