Home / 3,578.52-5,371.28-1,938.57

Finding the Fourth Proportional to 3,578.52, 5,371.28 and 1,938.57

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Solution

The fourth proportional to 3,578.52, 5,371.28 and 1,938.57 is: 2,909.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.52 : 5,371.28 = 1,938.57 : x
  2. Step 2: Convert to fraction form
    3,578.52/5,371.28 = 1,938.57/x
  3. Step 3: Cross multiply
    3,578.52x = 5,371.28 × 1,938.57
  4. Step 4: Simplify right side
    3,578.52x = 10,412,592.58
  5. Step 5: Solve for x
    x = 10,412,592.58/3,578.52
  6. Step 6: Final answer
    x = 2,909.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.