Home / 2,916.43-4,025.14-1,721.43

Finding the Fourth Proportional to 2,916.43, 4,025.14 and 1,721.43

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Solution

The fourth proportional to 2,916.43, 4,025.14 and 1,721.43 is: 2,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.43 : 4,025.14 = 1,721.43 : x
  2. Step 2: Convert to fraction form
    2,916.43/4,025.14 = 1,721.43/x
  3. Step 3: Cross multiply
    2,916.43x = 4,025.14 × 1,721.43
  4. Step 4: Simplify right side
    2,916.43x = 6,928,992.45
  5. Step 5: Solve for x
    x = 6,928,992.45/2,916.43
  6. Step 6: Final answer
    x = 2,375.85

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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.