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Finding the Fourth Proportional to 6,910.80, 9,536.92 and 3,927.62

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Solution

The fourth proportional to 6,910.80, 9,536.92 and 3,927.62 is: 5,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.80 : 9,536.92 = 3,927.62 : x
  2. Step 2: Convert to fraction form
    6,910.80/9,536.92 = 3,927.62/x
  3. Step 3: Cross multiply
    6,910.80x = 9,536.92 × 3,927.62
  4. Step 4: Simplify right side
    6,910.80x = 37,457,397.73
  5. Step 5: Solve for x
    x = 37,457,397.73/6,910.80
  6. Step 6: Final answer
    x = 5,420.13

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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.