Home / 7,187.45-10,777.11-2,799.86

Finding the Fourth Proportional to 7,187.45, 10,777.11 and 2,799.86

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Solution

The fourth proportional to 7,187.45, 10,777.11 and 2,799.86 is: 4,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.45 : 10,777.11 = 2,799.86 : x
  2. Step 2: Convert to fraction form
    7,187.45/10,777.11 = 2,799.86/x
  3. Step 3: Cross multiply
    7,187.45x = 10,777.11 × 2,799.86
  4. Step 4: Simplify right side
    7,187.45x = 30,174,399.20
  5. Step 5: Solve for x
    x = 30,174,399.20/7,187.45
  6. Step 6: Final answer
    x = 4,198.21

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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.