Home / 3,213.23-4,423.95-2,799.05

Finding the Fourth Proportional to 3,213.23, 4,423.95 and 2,799.05

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Solution

The fourth proportional to 3,213.23, 4,423.95 and 2,799.05 is: 3,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.23 : 4,423.95 = 2,799.05 : x
  2. Step 2: Convert to fraction form
    3,213.23/4,423.95 = 2,799.05/x
  3. Step 3: Cross multiply
    3,213.23x = 4,423.95 × 2,799.05
  4. Step 4: Simplify right side
    3,213.23x = 12,382,857.25
  5. Step 5: Solve for x
    x = 12,382,857.25/3,213.23
  6. Step 6: Final answer
    x = 3,853.71

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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.