Home / 3,192.78-4,405.98-1,950.78

Finding the Fourth Proportional to 3,192.78, 4,405.98 and 1,950.78

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Solution

The fourth proportional to 3,192.78, 4,405.98 and 1,950.78 is: 2,692.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.78 : 4,405.98 = 1,950.78 : x
  2. Step 2: Convert to fraction form
    3,192.78/4,405.98 = 1,950.78/x
  3. Step 3: Cross multiply
    3,192.78x = 4,405.98 × 1,950.78
  4. Step 4: Simplify right side
    3,192.78x = 8,595,097.66
  5. Step 5: Solve for x
    x = 8,595,097.66/3,192.78
  6. Step 6: Final answer
    x = 2,692.04

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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.