Home / 7,272.68-10,905.91-2,766.78

Finding the Fourth Proportional to 7,272.68, 10,905.91 and 2,766.78

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Solution

The fourth proportional to 7,272.68, 10,905.91 and 2,766.78 is: 4,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.68 : 10,905.91 = 2,766.78 : x
  2. Step 2: Convert to fraction form
    7,272.68/10,905.91 = 2,766.78/x
  3. Step 3: Cross multiply
    7,272.68x = 10,905.91 × 2,766.78
  4. Step 4: Simplify right side
    7,272.68x = 30,174,246.75
  5. Step 5: Solve for x
    x = 30,174,246.75/7,272.68
  6. Step 6: Final answer
    x = 4,148.99

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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.