Home / 2,821.43-3,893.17-1,562.56

Finding the Fourth Proportional to 2,821.43, 3,893.17 and 1,562.56

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Solution

The fourth proportional to 2,821.43, 3,893.17 and 1,562.56 is: 2,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.43 : 3,893.17 = 1,562.56 : x
  2. Step 2: Convert to fraction form
    2,821.43/3,893.17 = 1,562.56/x
  3. Step 3: Cross multiply
    2,821.43x = 3,893.17 × 1,562.56
  4. Step 4: Simplify right side
    2,821.43x = 6,083,298.08
  5. Step 5: Solve for x
    x = 6,083,298.08/2,821.43
  6. Step 6: Final answer
    x = 2,156.11

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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.