Home / 3,915.61-5,371.33-3,703.75

Finding the Fourth Proportional to 3,915.61, 5,371.33 and 3,703.75

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Solution

The fourth proportional to 3,915.61, 5,371.33 and 3,703.75 is: 5,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.61 : 5,371.33 = 3,703.75 : x
  2. Step 2: Convert to fraction form
    3,915.61/5,371.33 = 3,703.75/x
  3. Step 3: Cross multiply
    3,915.61x = 5,371.33 × 3,703.75
  4. Step 4: Simplify right side
    3,915.61x = 19,894,063.49
  5. Step 5: Solve for x
    x = 19,894,063.49/3,915.61
  6. Step 6: Final answer
    x = 5,080.71

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.