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Finding the Fourth Proportional to 3,668.88, 5,062.72 and 2,176.55

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Solution

The fourth proportional to 3,668.88, 5,062.72 and 2,176.55 is: 3,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.88 : 5,062.72 = 2,176.55 : x
  2. Step 2: Convert to fraction form
    3,668.88/5,062.72 = 2,176.55/x
  3. Step 3: Cross multiply
    3,668.88x = 5,062.72 × 2,176.55
  4. Step 4: Simplify right side
    3,668.88x = 11,019,227.02
  5. Step 5: Solve for x
    x = 11,019,227.02/3,668.88
  6. Step 6: Final answer
    x = 3,003.43

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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.