Home / 3,821.34-5,732.02-1,972.12

Finding the Fourth Proportional to 3,821.34, 5,732.02 and 1,972.12

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Solution

The fourth proportional to 3,821.34, 5,732.02 and 1,972.12 is: 2,958.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.34 : 5,732.02 = 1,972.12 : x
  2. Step 2: Convert to fraction form
    3,821.34/5,732.02 = 1,972.12/x
  3. Step 3: Cross multiply
    3,821.34x = 5,732.02 × 1,972.12
  4. Step 4: Simplify right side
    3,821.34x = 11,304,231.28
  5. Step 5: Solve for x
    x = 11,304,231.28/3,821.34
  6. Step 6: Final answer
    x = 2,958.19

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1.5x scale

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.