Home / 2,950.68-4,072.20-1,692.12

Finding the Fourth Proportional to 2,950.68, 4,072.20 and 1,692.12

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Solution

The fourth proportional to 2,950.68, 4,072.20 and 1,692.12 is: 2,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.68 : 4,072.20 = 1,692.12 : x
  2. Step 2: Convert to fraction form
    2,950.68/4,072.20 = 1,692.12/x
  3. Step 3: Cross multiply
    2,950.68x = 4,072.20 × 1,692.12
  4. Step 4: Simplify right side
    2,950.68x = 6,890,651.06
  5. Step 5: Solve for x
    x = 6,890,651.06/2,950.68
  6. Step 6: Final answer
    x = 2,335.28

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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.