Home / 2,921.92-4,385.68-1,828.48

Finding the Fourth Proportional to 2,921.92, 4,385.68 and 1,828.48

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Solution

The fourth proportional to 2,921.92, 4,385.68 and 1,828.48 is: 2,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.92 : 4,385.68 = 1,828.48 : x
  2. Step 2: Convert to fraction form
    2,921.92/4,385.68 = 1,828.48/x
  3. Step 3: Cross multiply
    2,921.92x = 4,385.68 × 1,828.48
  4. Step 4: Simplify right side
    2,921.92x = 8,019,128.17
  5. Step 5: Solve for x
    x = 8,019,128.17/2,921.92
  6. Step 6: Final answer
    x = 2,744.47

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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.