Home / 3,940.93-5,909.23-1,718.85

Finding the Fourth Proportional to 3,940.93, 5,909.23 and 1,718.85

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Solution

The fourth proportional to 3,940.93, 5,909.23 and 1,718.85 is: 2,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.93 : 5,909.23 = 1,718.85 : x
  2. Step 2: Convert to fraction form
    3,940.93/5,909.23 = 1,718.85/x
  3. Step 3: Cross multiply
    3,940.93x = 5,909.23 × 1,718.85
  4. Step 4: Simplify right side
    3,940.93x = 10,157,049.60
  5. Step 5: Solve for x
    x = 10,157,049.60/3,940.93
  6. Step 6: Final answer
    x = 2,577.32

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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.