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Finding the Fourth Proportional to 3,668.80, 5,028.64 and 3,537.60

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Solution

The fourth proportional to 3,668.80, 5,028.64 and 3,537.60 is: 4,848.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.80 : 5,028.64 = 3,537.60 : x
  2. Step 2: Convert to fraction form
    3,668.80/5,028.64 = 3,537.60/x
  3. Step 3: Cross multiply
    3,668.80x = 5,028.64 × 3,537.60
  4. Step 4: Simplify right side
    3,668.80x = 17,789,316.86
  5. Step 5: Solve for x
    x = 17,789,316.86/3,668.80
  6. Step 6: Final answer
    x = 4,848.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.