Home / 5,120.94-7,685.99-2,623.83

Finding the Fourth Proportional to 5,120.94, 7,685.99 and 2,623.83

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Solution

The fourth proportional to 5,120.94, 7,685.99 and 2,623.83 is: 3,938.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.94 : 7,685.99 = 2,623.83 : x
  2. Step 2: Convert to fraction form
    5,120.94/7,685.99 = 2,623.83/x
  3. Step 3: Cross multiply
    5,120.94x = 7,685.99 × 2,623.83
  4. Step 4: Simplify right side
    5,120.94x = 20,166,727.86
  5. Step 5: Solve for x
    x = 20,166,727.86/5,120.94
  6. Step 6: Final answer
    x = 3,938.09

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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.