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Finding the Fourth Proportional to 3,817.32, 5,739.84 and 3,512.79

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Solution

The fourth proportional to 3,817.32, 5,739.84 and 3,512.79 is: 5,281.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.32 : 5,739.84 = 3,512.79 : x
  2. Step 2: Convert to fraction form
    3,817.32/5,739.84 = 3,512.79/x
  3. Step 3: Cross multiply
    3,817.32x = 5,739.84 × 3,512.79
  4. Step 4: Simplify right side
    3,817.32x = 20,162,852.55
  5. Step 5: Solve for x
    x = 20,162,852.55/3,817.32
  6. Step 6: Final answer
    x = 5,281.94

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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.