Home / 5,212.94-7,193.80-2,855.08

Finding the Fourth Proportional to 5,212.94, 7,193.80 and 2,855.08

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Solution

The fourth proportional to 5,212.94, 7,193.80 and 2,855.08 is: 3,939.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.94 : 7,193.80 = 2,855.08 : x
  2. Step 2: Convert to fraction form
    5,212.94/7,193.80 = 2,855.08/x
  3. Step 3: Cross multiply
    5,212.94x = 7,193.80 × 2,855.08
  4. Step 4: Simplify right side
    5,212.94x = 20,538,874.50
  5. Step 5: Solve for x
    x = 20,538,874.50/5,212.94
  6. Step 6: Final answer
    x = 3,939.98

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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.