Home / 3,630.12-5,432.82-2,812.02

Finding the Fourth Proportional to 3,630.12, 5,432.82 and 2,812.02

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Solution

The fourth proportional to 3,630.12, 5,432.82 and 2,812.02 is: 4,208.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.12 : 5,432.82 = 2,812.02 : x
  2. Step 2: Convert to fraction form
    3,630.12/5,432.82 = 2,812.02/x
  3. Step 3: Cross multiply
    3,630.12x = 5,432.82 × 2,812.02
  4. Step 4: Simplify right side
    3,630.12x = 15,277,198.50
  5. Step 5: Solve for x
    x = 15,277,198.50/3,630.12
  6. Step 6: Final answer
    x = 4,208.46

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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.