Home / 3,300.96-4,949.69-1,220.57

Finding the Fourth Proportional to 3,300.96, 4,949.69 and 1,220.57

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Solution

The fourth proportional to 3,300.96, 4,949.69 and 1,220.57 is: 1,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300.96 : 4,949.69 = 1,220.57 : x
  2. Step 2: Convert to fraction form
    3,300.96/4,949.69 = 1,220.57/x
  3. Step 3: Cross multiply
    3,300.96x = 4,949.69 × 1,220.57
  4. Step 4: Simplify right side
    3,300.96x = 6,041,443.12
  5. Step 5: Solve for x
    x = 6,041,443.12/3,300.96
  6. Step 6: Final answer
    x = 1,830.21

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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.