Home / 3,540.45-5,311.59-1,692.99

Finding the Fourth Proportional to 3,540.45, 5,311.59 and 1,692.99

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Solution

The fourth proportional to 3,540.45, 5,311.59 and 1,692.99 is: 2,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.45 : 5,311.59 = 1,692.99 : x
  2. Step 2: Convert to fraction form
    3,540.45/5,311.59 = 1,692.99/x
  3. Step 3: Cross multiply
    3,540.45x = 5,311.59 × 1,692.99
  4. Step 4: Simplify right side
    3,540.45x = 8,992,468.75
  5. Step 5: Solve for x
    x = 8,992,468.75/3,540.45
  6. Step 6: Final answer
    x = 2,539.92

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1.5x scale

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.