Home / 2,816.92-4,224.20-1,172.28

Finding the Fourth Proportional to 2,816.92, 4,224.20 and 1,172.28

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Solution

The fourth proportional to 2,816.92, 4,224.20 and 1,172.28 is: 1,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.92 : 4,224.20 = 1,172.28 : x
  2. Step 2: Convert to fraction form
    2,816.92/4,224.20 = 1,172.28/x
  3. Step 3: Cross multiply
    2,816.92x = 4,224.20 × 1,172.28
  4. Step 4: Simplify right side
    2,816.92x = 4,951,945.18
  5. Step 5: Solve for x
    x = 4,951,945.18/2,816.92
  6. Step 6: Final answer
    x = 1,757.93

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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.