Home / 3,208.41-4,426.65-2,855.66

Finding the Fourth Proportional to 3,208.41, 4,426.65 and 2,855.66

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Solution

The fourth proportional to 3,208.41, 4,426.65 and 2,855.66 is: 3,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.41 : 4,426.65 = 2,855.66 : x
  2. Step 2: Convert to fraction form
    3,208.41/4,426.65 = 2,855.66/x
  3. Step 3: Cross multiply
    3,208.41x = 4,426.65 × 2,855.66
  4. Step 4: Simplify right side
    3,208.41x = 12,640,985.21
  5. Step 5: Solve for x
    x = 12,640,985.21/3,208.41
  6. Step 6: Final answer
    x = 3,939.95

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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.