Home / 7,200.45-10,799.78-1,935.86

Finding the Fourth Proportional to 7,200.45, 10,799.78 and 1,935.86

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Solution

The fourth proportional to 7,200.45, 10,799.78 and 1,935.86 is: 2,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.45 : 10,799.78 = 1,935.86 : x
  2. Step 2: Convert to fraction form
    7,200.45/10,799.78 = 1,935.86/x
  3. Step 3: Cross multiply
    7,200.45x = 10,799.78 × 1,935.86
  4. Step 4: Simplify right side
    7,200.45x = 20,906,798.43
  5. Step 5: Solve for x
    x = 20,906,798.43/7,200.45
  6. Step 6: Final answer
    x = 2,903.54

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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.