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Finding the Fourth Proportional to 3,903.63, 5,861.36 and 3,777.42

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Solution

The fourth proportional to 3,903.63, 5,861.36 and 3,777.42 is: 5,671.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.63 : 5,861.36 = 3,777.42 : x
  2. Step 2: Convert to fraction form
    3,903.63/5,861.36 = 3,777.42/x
  3. Step 3: Cross multiply
    3,903.63x = 5,861.36 × 3,777.42
  4. Step 4: Simplify right side
    3,903.63x = 22,140,816.94
  5. Step 5: Solve for x
    x = 22,140,816.94/3,903.63
  6. Step 6: Final answer
    x = 5,671.86

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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.