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Finding the Fourth Proportional to 3,960.90, 5,923.53 and 3,524.72

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Solution

The fourth proportional to 3,960.90, 5,923.53 and 3,524.72 is: 5,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.90 : 5,923.53 = 3,524.72 : x
  2. Step 2: Convert to fraction form
    3,960.90/5,923.53 = 3,524.72/x
  3. Step 3: Cross multiply
    3,960.90x = 5,923.53 × 3,524.72
  4. Step 4: Simplify right side
    3,960.90x = 20,878,755.04
  5. Step 5: Solve for x
    x = 20,878,755.04/3,960.90
  6. Step 6: Final answer
    x = 5,271.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.