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Finding the Fourth Proportional to 6,120.96, 8,445.96 and 3,467.76

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Solution

The fourth proportional to 6,120.96, 8,445.96 and 3,467.76 is: 4,784.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.96 : 8,445.96 = 3,467.76 : x
  2. Step 2: Convert to fraction form
    6,120.96/8,445.96 = 3,467.76/x
  3. Step 3: Cross multiply
    6,120.96x = 8,445.96 × 3,467.76
  4. Step 4: Simplify right side
    6,120.96x = 29,288,562.25
  5. Step 5: Solve for x
    x = 29,288,562.25/6,120.96
  6. Step 6: Final answer
    x = 4,784.96

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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.