Home / 3,928.84-5,884.98-2,690.44

Finding the Fourth Proportional to 3,928.84, 5,884.98 and 2,690.44

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Solution

The fourth proportional to 3,928.84, 5,884.98 and 2,690.44 is: 4,029.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.84 : 5,884.98 = 2,690.44 : x
  2. Step 2: Convert to fraction form
    3,928.84/5,884.98 = 2,690.44/x
  3. Step 3: Cross multiply
    3,928.84x = 5,884.98 × 2,690.44
  4. Step 4: Simplify right side
    3,928.84x = 15,833,185.59
  5. Step 5: Solve for x
    x = 15,833,185.59/3,928.84
  6. Step 6: Final answer
    x = 4,029.99

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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.