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Finding the Fourth Proportional to 6,412.82, 8,849.13 and 3,579.98

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Solution

The fourth proportional to 6,412.82, 8,849.13 and 3,579.98 is: 4,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.82 : 8,849.13 = 3,579.98 : x
  2. Step 2: Convert to fraction form
    6,412.82/8,849.13 = 3,579.98/x
  3. Step 3: Cross multiply
    6,412.82x = 8,849.13 × 3,579.98
  4. Step 4: Simplify right side
    6,412.82x = 31,679,708.42
  5. Step 5: Solve for x
    x = 31,679,708.42/6,412.82
  6. Step 6: Final answer
    x = 4,940.06

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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.