Home / 3,487.24-4,807.92-2,855.44

Finding the Fourth Proportional to 3,487.24, 4,807.92 and 2,855.44

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Solution

The fourth proportional to 3,487.24, 4,807.92 and 2,855.44 is: 3,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.24 : 4,807.92 = 2,855.44 : x
  2. Step 2: Convert to fraction form
    3,487.24/4,807.92 = 2,855.44/x
  3. Step 3: Cross multiply
    3,487.24x = 4,807.92 × 2,855.44
  4. Step 4: Simplify right side
    3,487.24x = 13,728,727.08
  5. Step 5: Solve for x
    x = 13,728,727.08/3,487.24
  6. Step 6: Final answer
    x = 3,936.85

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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.