Home / 3,324.80-4,986.10-1,103.12

Finding the Fourth Proportional to 3,324.80, 4,986.10 and 1,103.12

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Solution

The fourth proportional to 3,324.80, 4,986.10 and 1,103.12 is: 1,654.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.80 : 4,986.10 = 1,103.12 : x
  2. Step 2: Convert to fraction form
    3,324.80/4,986.10 = 1,103.12/x
  3. Step 3: Cross multiply
    3,324.80x = 4,986.10 × 1,103.12
  4. Step 4: Simplify right side
    3,324.80x = 5,500,261.12
  5. Step 5: Solve for x
    x = 5,500,261.12/3,324.80
  6. Step 6: Final answer
    x = 1,654.32

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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.