Home / 5,447.97-7,515.15-3,209.54

Finding the Fourth Proportional to 5,447.97, 7,515.15 and 3,209.54

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Solution

The fourth proportional to 5,447.97, 7,515.15 and 3,209.54 is: 4,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.97 : 7,515.15 = 3,209.54 : x
  2. Step 2: Convert to fraction form
    5,447.97/7,515.15 = 3,209.54/x
  3. Step 3: Cross multiply
    5,447.97x = 7,515.15 × 3,209.54
  4. Step 4: Simplify right side
    5,447.97x = 24,120,136.96
  5. Step 5: Solve for x
    x = 24,120,136.96/5,447.97
  6. Step 6: Final answer
    x = 4,427.36

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1.5x scale

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.