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Finding the Fourth Proportional to 3,605.43, 4,975.82 and 2,261.97

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Solution

The fourth proportional to 3,605.43, 4,975.82 and 2,261.97 is: 3,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.43 : 4,975.82 = 2,261.97 : x
  2. Step 2: Convert to fraction form
    3,605.43/4,975.82 = 2,261.97/x
  3. Step 3: Cross multiply
    3,605.43x = 4,975.82 × 2,261.97
  4. Step 4: Simplify right side
    3,605.43x = 11,255,144.26
  5. Step 5: Solve for x
    x = 11,255,144.26/3,605.43
  6. Step 6: Final answer
    x = 3,121.72

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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.