Home / 3,298.66-4,949.94-1,220.12

Finding the Fourth Proportional to 3,298.66, 4,949.94 and 1,220.12

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Solution

The fourth proportional to 3,298.66, 4,949.94 and 1,220.12 is: 1,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.66 : 4,949.94 = 1,220.12 : x
  2. Step 2: Convert to fraction form
    3,298.66/4,949.94 = 1,220.12/x
  3. Step 3: Cross multiply
    3,298.66x = 4,949.94 × 1,220.12
  4. Step 4: Simplify right side
    3,298.66x = 6,039,520.79
  5. Step 5: Solve for x
    x = 6,039,520.79/3,298.66
  6. Step 6: Final answer
    x = 1,830.90

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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.