Home / 7,919.66-11,880.30-2,372.37

Finding the Fourth Proportional to 7,919.66, 11,880.30 and 2,372.37

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Solution

The fourth proportional to 7,919.66, 11,880.30 and 2,372.37 is: 3,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.66 : 11,880.30 = 2,372.37 : x
  2. Step 2: Convert to fraction form
    7,919.66/11,880.30 = 2,372.37/x
  3. Step 3: Cross multiply
    7,919.66x = 11,880.30 × 2,372.37
  4. Step 4: Simplify right side
    7,919.66x = 28,184,467.31
  5. Step 5: Solve for x
    x = 28,184,467.31/7,919.66
  6. Step 6: Final answer
    x = 3,558.80

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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.