Home / 2,813.13-3,879.50-2,225.07

Finding the Fourth Proportional to 2,813.13, 3,879.50 and 2,225.07

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Solution

The fourth proportional to 2,813.13, 3,879.50 and 2,225.07 is: 3,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.13 : 3,879.50 = 2,225.07 : x
  2. Step 2: Convert to fraction form
    2,813.13/3,879.50 = 2,225.07/x
  3. Step 3: Cross multiply
    2,813.13x = 3,879.50 × 2,225.07
  4. Step 4: Simplify right side
    2,813.13x = 8,632,147.94
  5. Step 5: Solve for x
    x = 8,632,147.94/2,813.13
  6. Step 6: Final answer
    x = 3,068.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.