Home / 3,072.20-4,606.95-1,222.70

Finding the Fourth Proportional to 3,072.20, 4,606.95 and 1,222.70

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Solution

The fourth proportional to 3,072.20, 4,606.95 and 1,222.70 is: 1,833.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.20 : 4,606.95 = 1,222.70 : x
  2. Step 2: Convert to fraction form
    3,072.20/4,606.95 = 1,222.70/x
  3. Step 3: Cross multiply
    3,072.20x = 4,606.95 × 1,222.70
  4. Step 4: Simplify right side
    3,072.20x = 5,632,917.77
  5. Step 5: Solve for x
    x = 5,632,917.77/3,072.20
  6. Step 6: Final answer
    x = 1,833.51

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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.