Home / 2,777.28-4,162.87-1,133.38

Finding the Fourth Proportional to 2,777.28, 4,162.87 and 1,133.38

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Solution

The fourth proportional to 2,777.28, 4,162.87 and 1,133.38 is: 1,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.28 : 4,162.87 = 1,133.38 : x
  2. Step 2: Convert to fraction form
    2,777.28/4,162.87 = 1,133.38/x
  3. Step 3: Cross multiply
    2,777.28x = 4,162.87 × 1,133.38
  4. Step 4: Simplify right side
    2,777.28x = 4,718,113.60
  5. Step 5: Solve for x
    x = 4,718,113.60/2,777.28
  6. Step 6: Final answer
    x = 1,698.83

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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.