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Finding the Fourth Proportional to 6,355.13, 8,770.07 and 3,871.13

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Solution

The fourth proportional to 6,355.13, 8,770.07 and 3,871.13 is: 5,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355.13 : 8,770.07 = 3,871.13 : x
  2. Step 2: Convert to fraction form
    6,355.13/8,770.07 = 3,871.13/x
  3. Step 3: Cross multiply
    6,355.13x = 8,770.07 × 3,871.13
  4. Step 4: Simplify right side
    6,355.13x = 33,950,046.91
  5. Step 5: Solve for x
    x = 33,950,046.91/6,355.13
  6. Step 6: Final answer
    x = 5,342.15

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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.