Home / 3,825.12-5,734.80-1,515.36

Finding the Fourth Proportional to 3,825.12, 5,734.80 and 1,515.36

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Solution

The fourth proportional to 3,825.12, 5,734.80 and 1,515.36 is: 2,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.12 : 5,734.80 = 1,515.36 : x
  2. Step 2: Convert to fraction form
    3,825.12/5,734.80 = 1,515.36/x
  3. Step 3: Cross multiply
    3,825.12x = 5,734.80 × 1,515.36
  4. Step 4: Simplify right side
    3,825.12x = 8,690,286.53
  5. Step 5: Solve for x
    x = 8,690,286.53/3,825.12
  6. Step 6: Final answer
    x = 2,271.90

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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.