Home / 2,916.38-4,024.68-1,721.43

Finding the Fourth Proportional to 2,916.38, 4,024.68 and 1,721.43

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Solution

The fourth proportional to 2,916.38, 4,024.68 and 1,721.43 is: 2,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.38 : 4,024.68 = 1,721.43 : x
  2. Step 2: Convert to fraction form
    2,916.38/4,024.68 = 1,721.43/x
  3. Step 3: Cross multiply
    2,916.38x = 4,024.68 × 1,721.43
  4. Step 4: Simplify right side
    2,916.38x = 6,928,204.89
  5. Step 5: Solve for x
    x = 6,928,204.89/2,916.38
  6. Step 6: Final answer
    x = 2,375.62

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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.