Home / 5,680.68-8,515.98-2,217.12

Finding the Fourth Proportional to 5,680.68, 8,515.98 and 2,217.12

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Solution

The fourth proportional to 5,680.68, 8,515.98 and 2,217.12 is: 3,323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.68 : 8,515.98 = 2,217.12 : x
  2. Step 2: Convert to fraction form
    5,680.68/8,515.98 = 2,217.12/x
  3. Step 3: Cross multiply
    5,680.68x = 8,515.98 × 2,217.12
  4. Step 4: Simplify right side
    5,680.68x = 18,880,949.58
  5. Step 5: Solve for x
    x = 18,880,949.58/5,680.68
  6. Step 6: Final answer
    x = 3,323.71

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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.