Home / 3,298.21-4,949.82-1,220.18

Finding the Fourth Proportional to 3,298.21, 4,949.82 and 1,220.18

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Solution

The fourth proportional to 3,298.21, 4,949.82 and 1,220.18 is: 1,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.21 : 4,949.82 = 1,220.18 : x
  2. Step 2: Convert to fraction form
    3,298.21/4,949.82 = 1,220.18/x
  3. Step 3: Cross multiply
    3,298.21x = 4,949.82 × 1,220.18
  4. Step 4: Simplify right side
    3,298.21x = 6,039,671.37
  5. Step 5: Solve for x
    x = 6,039,671.37/3,298.21
  6. Step 6: Final answer
    x = 1,831.20

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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.