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Finding the Fourth Proportional to 6,668.55, 9,202.62 and 3,643.71

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Solution

The fourth proportional to 6,668.55, 9,202.62 and 3,643.71 is: 5,028.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.55 : 9,202.62 = 3,643.71 : x
  2. Step 2: Convert to fraction form
    6,668.55/9,202.62 = 3,643.71/x
  3. Step 3: Cross multiply
    6,668.55x = 9,202.62 × 3,643.71
  4. Step 4: Simplify right side
    6,668.55x = 33,531,657.67
  5. Step 5: Solve for x
    x = 33,531,657.67/6,668.55
  6. Step 6: Final answer
    x = 5,028.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.