Home / 3,618.12-5,391.96-3,228.24

Finding the Fourth Proportional to 3,618.12, 5,391.96 and 3,228.24

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Solution

The fourth proportional to 3,618.12, 5,391.96 and 3,228.24 is: 4,810.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.12 : 5,391.96 = 3,228.24 : x
  2. Step 2: Convert to fraction form
    3,618.12/5,391.96 = 3,228.24/x
  3. Step 3: Cross multiply
    3,618.12x = 5,391.96 × 3,228.24
  4. Step 4: Simplify right side
    3,618.12x = 17,406,540.95
  5. Step 5: Solve for x
    x = 17,406,540.95/3,618.12
  6. Step 6: Final answer
    x = 4,810.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.