Home / 2,816.45-4,225.85-1,255.38

Finding the Fourth Proportional to 2,816.45, 4,225.85 and 1,255.38

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Solution

The fourth proportional to 2,816.45, 4,225.85 and 1,255.38 is: 1,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.45 : 4,225.85 = 1,255.38 : x
  2. Step 2: Convert to fraction form
    2,816.45/4,225.85 = 1,255.38/x
  3. Step 3: Cross multiply
    2,816.45x = 4,225.85 × 1,255.38
  4. Step 4: Simplify right side
    2,816.45x = 5,305,047.57
  5. Step 5: Solve for x
    x = 5,305,047.57/2,816.45
  6. Step 6: Final answer
    x = 1,883.59

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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.