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Finding the Fourth Proportional to 6,355.32, 8,770.34 and 3,871.32

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Solution

The fourth proportional to 6,355.32, 8,770.34 and 3,871.32 is: 5,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355.32 : 8,770.34 = 3,871.32 : x
  2. Step 2: Convert to fraction form
    6,355.32/8,770.34 = 3,871.32/x
  3. Step 3: Cross multiply
    6,355.32x = 8,770.34 × 3,871.32
  4. Step 4: Simplify right side
    6,355.32x = 33,952,773.29
  5. Step 5: Solve for x
    x = 33,952,773.29/6,355.32
  6. Step 6: Final answer
    x = 5,342.42

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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.