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Finding the Fourth Proportional to 6,361.62, 8,778.59 and 3,529.11

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Solution

The fourth proportional to 6,361.62, 8,778.59 and 3,529.11 is: 4,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.62 : 8,778.59 = 3,529.11 : x
  2. Step 2: Convert to fraction form
    6,361.62/8,778.59 = 3,529.11/x
  3. Step 3: Cross multiply
    6,361.62x = 8,778.59 × 3,529.11
  4. Step 4: Simplify right side
    6,361.62x = 30,980,609.75
  5. Step 5: Solve for x
    x = 30,980,609.75/6,361.62
  6. Step 6: Final answer
    x = 4,869.92

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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.