Home / 4,920.10-7,380.03-1,633.21

Finding the Fourth Proportional to 4,920.10, 7,380.03 and 1,633.21

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Solution

The fourth proportional to 4,920.10, 7,380.03 and 1,633.21 is: 2,449.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.10 : 7,380.03 = 1,633.21 : x
  2. Step 2: Convert to fraction form
    4,920.10/7,380.03 = 1,633.21/x
  3. Step 3: Cross multiply
    4,920.10x = 7,380.03 × 1,633.21
  4. Step 4: Simplify right side
    4,920.10x = 12,053,138.80
  5. Step 5: Solve for x
    x = 12,053,138.80/4,920.10
  6. Step 6: Final answer
    x = 2,449.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.