Home / 6,811.10-9,397.64-3,976.86

Finding the Fourth Proportional to 6,811.10, 9,397.64 and 3,976.86

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Solution

The fourth proportional to 6,811.10, 9,397.64 and 3,976.86 is: 5,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.10 : 9,397.64 = 3,976.86 : x
  2. Step 2: Convert to fraction form
    6,811.10/9,397.64 = 3,976.86/x
  3. Step 3: Cross multiply
    6,811.10x = 9,397.64 × 3,976.86
  4. Step 4: Simplify right side
    6,811.10x = 37,373,108.55
  5. Step 5: Solve for x
    x = 37,373,108.55/6,811.10
  6. Step 6: Final answer
    x = 5,487.09

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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.