Home / 6,690.96-9,234.68-3,857.82

Finding the Fourth Proportional to 6,690.96, 9,234.68 and 3,857.82

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Solution

The fourth proportional to 6,690.96, 9,234.68 and 3,857.82 is: 5,324.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.96 : 9,234.68 = 3,857.82 : x
  2. Step 2: Convert to fraction form
    6,690.96/9,234.68 = 3,857.82/x
  3. Step 3: Cross multiply
    6,690.96x = 9,234.68 × 3,857.82
  4. Step 4: Simplify right side
    6,690.96x = 35,625,733.20
  5. Step 5: Solve for x
    x = 35,625,733.20/6,690.96
  6. Step 6: Final answer
    x = 5,324.46

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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.