Home / 2,930.30-4,395.62-850.49

Finding the Fourth Proportional to 2,930.30, 4,395.62 and 850.49

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Solution

The fourth proportional to 2,930.30, 4,395.62 and 850.49 is: 1,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.30 : 4,395.62 = 850.49 : x
  2. Step 2: Convert to fraction form
    2,930.30/4,395.62 = 850.49/x
  3. Step 3: Cross multiply
    2,930.30x = 4,395.62 × 850.49
  4. Step 4: Simplify right side
    2,930.30x = 3,738,430.85
  5. Step 5: Solve for x
    x = 3,738,430.85/2,930.30
  6. Step 6: Final answer
    x = 1,275.78

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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.