Home / 4,991.62-7,489.22-2,140.92

Finding the Fourth Proportional to 4,991.62, 7,489.22 and 2,140.92

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Solution

The fourth proportional to 4,991.62, 7,489.22 and 2,140.92 is: 3,212.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.62 : 7,489.22 = 2,140.92 : x
  2. Step 2: Convert to fraction form
    4,991.62/7,489.22 = 2,140.92/x
  3. Step 3: Cross multiply
    4,991.62x = 7,489.22 × 2,140.92
  4. Step 4: Simplify right side
    4,991.62x = 16,033,820.88
  5. Step 5: Solve for x
    x = 16,033,820.88/4,991.62
  6. Step 6: Final answer
    x = 3,212.15

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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.