Home / 4,120.86-6,184.61-2,147.09

Finding the Fourth Proportional to 4,120.86, 6,184.61 and 2,147.09

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Solution

The fourth proportional to 4,120.86, 6,184.61 and 2,147.09 is: 3,222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.86 : 6,184.61 = 2,147.09 : x
  2. Step 2: Convert to fraction form
    4,120.86/6,184.61 = 2,147.09/x
  3. Step 3: Cross multiply
    4,120.86x = 6,184.61 × 2,147.09
  4. Step 4: Simplify right side
    4,120.86x = 13,278,915.47
  5. Step 5: Solve for x
    x = 13,278,915.47/4,120.86
  6. Step 6: Final answer
    x = 3,222.37

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1.5x scale

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.