Home / 7,209.91-10,816.20-2,280.79

Finding the Fourth Proportional to 7,209.91, 10,816.20 and 2,280.79

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Solution

The fourth proportional to 7,209.91, 10,816.20 and 2,280.79 is: 3,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.91 : 10,816.20 = 2,280.79 : x
  2. Step 2: Convert to fraction form
    7,209.91/10,816.20 = 2,280.79/x
  3. Step 3: Cross multiply
    7,209.91x = 10,816.20 × 2,280.79
  4. Step 4: Simplify right side
    7,209.91x = 24,669,480.80
  5. Step 5: Solve for x
    x = 24,669,480.80/7,209.91
  6. Step 6: Final answer
    x = 3,421.61

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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.