Home / 5,680.93-8,516.40-2,215.75

Finding the Fourth Proportional to 5,680.93, 8,516.40 and 2,215.75

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Solution

The fourth proportional to 5,680.93, 8,516.40 and 2,215.75 is: 3,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.93 : 8,516.40 = 2,215.75 : x
  2. Step 2: Convert to fraction form
    5,680.93/8,516.40 = 2,215.75/x
  3. Step 3: Cross multiply
    5,680.93x = 8,516.40 × 2,215.75
  4. Step 4: Simplify right side
    5,680.93x = 18,870,213.30
  5. Step 5: Solve for x
    x = 18,870,213.30/5,680.93
  6. Step 6: Final answer
    x = 3,321.68

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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.