Home / 5,680.94-8,516.39-2,215.76

Finding the Fourth Proportional to 5,680.94, 8,516.39 and 2,215.76

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Solution

The fourth proportional to 5,680.94, 8,516.39 and 2,215.76 is: 3,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.94 : 8,516.39 = 2,215.76 : x
  2. Step 2: Convert to fraction form
    5,680.94/8,516.39 = 2,215.76/x
  3. Step 3: Cross multiply
    5,680.94x = 8,516.39 × 2,215.76
  4. Step 4: Simplify right side
    5,680.94x = 18,870,276.31
  5. Step 5: Solve for x
    x = 18,870,276.31/5,680.94
  6. Step 6: Final answer
    x = 3,321.68

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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.