Home / 3,821.16-5,265.30-3,072.12

Finding the Fourth Proportional to 3,821.16, 5,265.30 and 3,072.12

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Solution

The fourth proportional to 3,821.16, 5,265.30 and 3,072.12 is: 4,233.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.16 : 5,265.30 = 3,072.12 : x
  2. Step 2: Convert to fraction form
    3,821.16/5,265.30 = 3,072.12/x
  3. Step 3: Cross multiply
    3,821.16x = 5,265.30 × 3,072.12
  4. Step 4: Simplify right side
    3,821.16x = 16,175,633.44
  5. Step 5: Solve for x
    x = 16,175,633.44/3,821.16
  6. Step 6: Final answer
    x = 4,233.17

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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.