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Finding the Fourth Proportional to 6,520.14, 8,997.84 and 3,868.86

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Solution

The fourth proportional to 6,520.14, 8,997.84 and 3,868.86 is: 5,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.14 : 8,997.84 = 3,868.86 : x
  2. Step 2: Convert to fraction form
    6,520.14/8,997.84 = 3,868.86/x
  3. Step 3: Cross multiply
    6,520.14x = 8,997.84 × 3,868.86
  4. Step 4: Simplify right side
    6,520.14x = 34,811,383.26
  5. Step 5: Solve for x
    x = 34,811,383.26/6,520.14
  6. Step 6: Final answer
    x = 5,339.05

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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.