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Finding the Fourth Proportional to 3,861.96, 5,330.04 and 2,184.04

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Solution

The fourth proportional to 3,861.96, 5,330.04 and 2,184.04 is: 3,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.96 : 5,330.04 = 2,184.04 : x
  2. Step 2: Convert to fraction form
    3,861.96/5,330.04 = 2,184.04/x
  3. Step 3: Cross multiply
    3,861.96x = 5,330.04 × 2,184.04
  4. Step 4: Simplify right side
    3,861.96x = 11,641,020.56
  5. Step 5: Solve for x
    x = 11,641,020.56/3,861.96
  6. Step 6: Final answer
    x = 3,014.28

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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.