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Finding the Fourth Proportional to 6,347.96, 8,761.14 and 3,958.31

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Solution

The fourth proportional to 6,347.96, 8,761.14 and 3,958.31 is: 5,463.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.96 : 8,761.14 = 3,958.31 : x
  2. Step 2: Convert to fraction form
    6,347.96/8,761.14 = 3,958.31/x
  3. Step 3: Cross multiply
    6,347.96x = 8,761.14 × 3,958.31
  4. Step 4: Simplify right side
    6,347.96x = 34,679,329.98
  5. Step 5: Solve for x
    x = 34,679,329.98/6,347.96
  6. Step 6: Final answer
    x = 5,463.07

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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.