Home / 3,823.19-5,278.99-2,479.44

Finding the Fourth Proportional to 3,823.19, 5,278.99 and 2,479.44

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Solution

The fourth proportional to 3,823.19, 5,278.99 and 2,479.44 is: 3,423.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.19 : 5,278.99 = 2,479.44 : x
  2. Step 2: Convert to fraction form
    3,823.19/5,278.99 = 2,479.44/x
  3. Step 3: Cross multiply
    3,823.19x = 5,278.99 × 2,479.44
  4. Step 4: Simplify right side
    3,823.19x = 13,088,902.21
  5. Step 5: Solve for x
    x = 13,088,902.21/3,823.19
  6. Step 6: Final answer
    x = 3,423.56

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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.