Home / 4,450.80-6,669.99-2,109.90

Finding the Fourth Proportional to 4,450.80, 6,669.99 and 2,109.90

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Solution

The fourth proportional to 4,450.80, 6,669.99 and 2,109.90 is: 3,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,450.80 : 6,669.99 = 2,109.90 : x
  2. Step 2: Convert to fraction form
    4,450.80/6,669.99 = 2,109.90/x
  3. Step 3: Cross multiply
    4,450.80x = 6,669.99 × 2,109.90
  4. Step 4: Simplify right side
    4,450.80x = 14,073,011.90
  5. Step 5: Solve for x
    x = 14,073,011.90/4,450.80
  6. Step 6: Final answer
    x = 3,161.91

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1.5x scale

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.