Home / 3,174.86-4,754.09-2,190.71

Finding the Fourth Proportional to 3,174.86, 4,754.09 and 2,190.71

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Solution

The fourth proportional to 3,174.86, 4,754.09 and 2,190.71 is: 3,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.86 : 4,754.09 = 2,190.71 : x
  2. Step 2: Convert to fraction form
    3,174.86/4,754.09 = 2,190.71/x
  3. Step 3: Cross multiply
    3,174.86x = 4,754.09 × 2,190.71
  4. Step 4: Simplify right side
    3,174.86x = 10,414,821.55
  5. Step 5: Solve for x
    x = 10,414,821.55/3,174.86
  6. Step 6: Final answer
    x = 3,280.40

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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.