Home / 7,384.92-11,079.21-2,190.80

Finding the Fourth Proportional to 7,384.92, 11,079.21 and 2,190.80

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Solution

The fourth proportional to 7,384.92, 11,079.21 and 2,190.80 is: 3,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.92 : 11,079.21 = 2,190.80 : x
  2. Step 2: Convert to fraction form
    7,384.92/11,079.21 = 2,190.80/x
  3. Step 3: Cross multiply
    7,384.92x = 11,079.21 × 2,190.80
  4. Step 4: Simplify right side
    7,384.92x = 24,272,288.38
  5. Step 5: Solve for x
    x = 24,272,288.38/7,384.92
  6. Step 6: Final answer
    x = 3,286.74

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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.