Home / 5,631.50-8,449.68-2,171.18

Finding the Fourth Proportional to 5,631.50, 8,449.68 and 2,171.18

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Solution

The fourth proportional to 5,631.50, 8,449.68 and 2,171.18 is: 3,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.50 : 8,449.68 = 2,171.18 : x
  2. Step 2: Convert to fraction form
    5,631.50/8,449.68 = 2,171.18/x
  3. Step 3: Cross multiply
    5,631.50x = 8,449.68 × 2,171.18
  4. Step 4: Simplify right side
    5,631.50x = 18,345,776.22
  5. Step 5: Solve for x
    x = 18,345,776.22/5,631.50
  6. Step 6: Final answer
    x = 3,257.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.