Home / 2,847.38-4,267.87-2,151.79

Finding the Fourth Proportional to 2,847.38, 4,267.87 and 2,151.79

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Solution

The fourth proportional to 2,847.38, 4,267.87 and 2,151.79 is: 3,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.38 : 4,267.87 = 2,151.79 : x
  2. Step 2: Convert to fraction form
    2,847.38/4,267.87 = 2,151.79/x
  3. Step 3: Cross multiply
    2,847.38x = 4,267.87 × 2,151.79
  4. Step 4: Simplify right side
    2,847.38x = 9,183,543.94
  5. Step 5: Solve for x
    x = 9,183,543.94/2,847.38
  6. Step 6: Final answer
    x = 3,225.27

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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.