Home / 2,921.43-4,029.45-1,801.96

Finding the Fourth Proportional to 2,921.43, 4,029.45 and 1,801.96

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Solution

The fourth proportional to 2,921.43, 4,029.45 and 1,801.96 is: 2,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.43 : 4,029.45 = 1,801.96 : x
  2. Step 2: Convert to fraction form
    2,921.43/4,029.45 = 1,801.96/x
  3. Step 3: Cross multiply
    2,921.43x = 4,029.45 × 1,801.96
  4. Step 4: Simplify right side
    2,921.43x = 7,260,887.57
  5. Step 5: Solve for x
    x = 7,260,887.57/2,921.43
  6. Step 6: Final answer
    x = 2,485.39

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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.