Home / 4,991.38-7,489.24-2,680.18

Finding the Fourth Proportional to 4,991.38, 7,489.24 and 2,680.18

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Solution

The fourth proportional to 4,991.38, 7,489.24 and 2,680.18 is: 4,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.38 : 7,489.24 = 2,680.18 : x
  2. Step 2: Convert to fraction form
    4,991.38/7,489.24 = 2,680.18/x
  3. Step 3: Cross multiply
    4,991.38x = 7,489.24 × 2,680.18
  4. Step 4: Simplify right side
    4,991.38x = 20,072,511.26
  5. Step 5: Solve for x
    x = 20,072,511.26/4,991.38
  6. Step 6: Final answer
    x = 4,021.44

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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.