Home / 7,227.20-9,981.96-4,865.60

Finding the Fourth Proportional to 7,227.20, 9,981.96 and 4,865.60

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Solution

The fourth proportional to 7,227.20, 9,981.96 and 4,865.60 is: 6,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,227.20 : 9,981.96 = 4,865.60 : x
  2. Step 2: Convert to fraction form
    7,227.20/9,981.96 = 4,865.60/x
  3. Step 3: Cross multiply
    7,227.20x = 9,981.96 × 4,865.60
  4. Step 4: Simplify right side
    7,227.20x = 48,568,224.58
  5. Step 5: Solve for x
    x = 48,568,224.58/7,227.20
  6. Step 6: Final answer
    x = 6,720.20

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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.