Home / 3,049.50-4,206.90-1,790.15

Finding the Fourth Proportional to 3,049.50, 4,206.90 and 1,790.15

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Solution

The fourth proportional to 3,049.50, 4,206.90 and 1,790.15 is: 2,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.50 : 4,206.90 = 1,790.15 : x
  2. Step 2: Convert to fraction form
    3,049.50/4,206.90 = 1,790.15/x
  3. Step 3: Cross multiply
    3,049.50x = 4,206.90 × 1,790.15
  4. Step 4: Simplify right side
    3,049.50x = 7,530,983.83
  5. Step 5: Solve for x
    x = 7,530,983.83/3,049.50
  6. Step 6: Final answer
    x = 2,469.58

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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.