Home / 3,300.36-4,950.78-1,108.20

Finding the Fourth Proportional to 3,300.36, 4,950.78 and 1,108.20

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Solution

The fourth proportional to 3,300.36, 4,950.78 and 1,108.20 is: 1,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300.36 : 4,950.78 = 1,108.20 : x
  2. Step 2: Convert to fraction form
    3,300.36/4,950.78 = 1,108.20/x
  3. Step 3: Cross multiply
    3,300.36x = 4,950.78 × 1,108.20
  4. Step 4: Simplify right side
    3,300.36x = 5,486,454.40
  5. Step 5: Solve for x
    x = 5,486,454.40/3,300.36
  6. Step 6: Final answer
    x = 1,662.38

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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.