Home / 5,213.63-7,194.87-2,855.72

Finding the Fourth Proportional to 5,213.63, 7,194.87 and 2,855.72

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Solution

The fourth proportional to 5,213.63, 7,194.87 and 2,855.72 is: 3,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.63 : 7,194.87 = 2,855.72 : x
  2. Step 2: Convert to fraction form
    5,213.63/7,194.87 = 2,855.72/x
  3. Step 3: Cross multiply
    5,213.63x = 7,194.87 × 2,855.72
  4. Step 4: Simplify right side
    5,213.63x = 20,546,498.18
  5. Step 5: Solve for x
    x = 20,546,498.18/5,213.63
  6. Step 6: Final answer
    x = 3,940.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.