Home / 7,273.20-10,909.86-2,079.12

Finding the Fourth Proportional to 7,273.20, 10,909.86 and 2,079.12

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Solution

The fourth proportional to 7,273.20, 10,909.86 and 2,079.12 is: 3,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.20 : 10,909.86 = 2,079.12 : x
  2. Step 2: Convert to fraction form
    7,273.20/10,909.86 = 2,079.12/x
  3. Step 3: Cross multiply
    7,273.20x = 10,909.86 × 2,079.12
  4. Step 4: Simplify right side
    7,273.20x = 22,682,908.12
  5. Step 5: Solve for x
    x = 22,682,908.12/7,273.20
  6. Step 6: Final answer
    x = 3,118.70

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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.