Home / 7,273.45-10,912.20-3,575.80

Finding the Fourth Proportional to 7,273.45, 10,912.20 and 3,575.80

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Solution

The fourth proportional to 7,273.45, 10,912.20 and 3,575.80 is: 5,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.45 : 10,912.20 = 3,575.80 : x
  2. Step 2: Convert to fraction form
    7,273.45/10,912.20 = 3,575.80/x
  3. Step 3: Cross multiply
    7,273.45x = 10,912.20 × 3,575.80
  4. Step 4: Simplify right side
    7,273.45x = 39,019,844.76
  5. Step 5: Solve for x
    x = 39,019,844.76/7,273.45
  6. Step 6: Final answer
    x = 5,364.70

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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.