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Finding the Fourth Proportional to 3,714.40, 5,571.60 and 3,282.40

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Solution

The fourth proportional to 3,714.40, 5,571.60 and 3,282.40 is: 4,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.40 : 5,571.60 = 3,282.40 : x
  2. Step 2: Convert to fraction form
    3,714.40/5,571.60 = 3,282.40/x
  3. Step 3: Cross multiply
    3,714.40x = 5,571.60 × 3,282.40
  4. Step 4: Simplify right side
    3,714.40x = 18,288,219.84
  5. Step 5: Solve for x
    x = 18,288,219.84/3,714.40
  6. Step 6: Final answer
    x = 4,923.60

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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.