Home / 3,479.11-4,799.84-2,220.21

Finding the Fourth Proportional to 3,479.11, 4,799.84 and 2,220.21

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Solution

The fourth proportional to 3,479.11, 4,799.84 and 2,220.21 is: 3,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.11 : 4,799.84 = 2,220.21 : x
  2. Step 2: Convert to fraction form
    3,479.11/4,799.84 = 2,220.21/x
  3. Step 3: Cross multiply
    3,479.11x = 4,799.84 × 2,220.21
  4. Step 4: Simplify right side
    3,479.11x = 10,656,641.67
  5. Step 5: Solve for x
    x = 10,656,641.67/3,479.11
  6. Step 6: Final answer
    x = 3,063.04

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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.