Home / 3,916.38-5,405.30-2,344.47

Finding the Fourth Proportional to 3,916.38, 5,405.30 and 2,344.47

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Solution

The fourth proportional to 3,916.38, 5,405.30 and 2,344.47 is: 3,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.38 : 5,405.30 = 2,344.47 : x
  2. Step 2: Convert to fraction form
    3,916.38/5,405.30 = 2,344.47/x
  3. Step 3: Cross multiply
    3,916.38x = 5,405.30 × 2,344.47
  4. Step 4: Simplify right side
    3,916.38x = 12,672,551.97
  5. Step 5: Solve for x
    x = 12,672,551.97/3,916.38
  6. Step 6: Final answer
    x = 3,235.78

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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.