Home / 4,988.20-7,481.70-2,066.20

Finding the Fourth Proportional to 4,988.20, 7,481.70 and 2,066.20

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Solution

The fourth proportional to 4,988.20, 7,481.70 and 2,066.20 is: 3,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.20 : 7,481.70 = 2,066.20 : x
  2. Step 2: Convert to fraction form
    4,988.20/7,481.70 = 2,066.20/x
  3. Step 3: Cross multiply
    4,988.20x = 7,481.70 × 2,066.20
  4. Step 4: Simplify right side
    4,988.20x = 15,458,688.54
  5. Step 5: Solve for x
    x = 15,458,688.54/4,988.20
  6. Step 6: Final answer
    x = 3,099.05

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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.