Home / 1,723.92-2,374.92-1,391.44

Finding the Fourth Proportional to 1,723.92, 2,374.92 and 1,391.44

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Solution

The fourth proportional to 1,723.92, 2,374.92 and 1,391.44 is: 1,916.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.92 : 2,374.92 = 1,391.44 : x
  2. Step 2: Convert to fraction form
    1,723.92/2,374.92 = 1,391.44/x
  3. Step 3: Cross multiply
    1,723.92x = 2,374.92 × 1,391.44
  4. Step 4: Simplify right side
    1,723.92x = 3,304,558.68
  5. Step 5: Solve for x
    x = 3,304,558.68/1,723.92
  6. Step 6: Final answer
    x = 1,916.89

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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.