Home / 3,863.34-5,333.58-3,489.12

Finding the Fourth Proportional to 3,863.34, 5,333.58 and 3,489.12

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Solution

The fourth proportional to 3,863.34, 5,333.58 and 3,489.12 is: 4,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.34 : 5,333.58 = 3,489.12 : x
  2. Step 2: Convert to fraction form
    3,863.34/5,333.58 = 3,489.12/x
  3. Step 3: Cross multiply
    3,863.34x = 5,333.58 × 3,489.12
  4. Step 4: Simplify right side
    3,863.34x = 18,609,500.65
  5. Step 5: Solve for x
    x = 18,609,500.65/3,863.34
  6. Step 6: Final answer
    x = 4,816.95

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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.