Home / 2,783.72-4,172.80-1,795.92

Finding the Fourth Proportional to 2,783.72, 4,172.80 and 1,795.92

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Solution

The fourth proportional to 2,783.72, 4,172.80 and 1,795.92 is: 2,692.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.72 : 4,172.80 = 1,795.92 : x
  2. Step 2: Convert to fraction form
    2,783.72/4,172.80 = 1,795.92/x
  3. Step 3: Cross multiply
    2,783.72x = 4,172.80 × 1,795.92
  4. Step 4: Simplify right side
    2,783.72x = 7,494,014.98
  5. Step 5: Solve for x
    x = 7,494,014.98/2,783.72
  6. Step 6: Final answer
    x = 2,692.09

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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.