Home / 3,821.96-5,729.58-1,972.14

Finding the Fourth Proportional to 3,821.96, 5,729.58 and 1,972.14

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Solution

The fourth proportional to 3,821.96, 5,729.58 and 1,972.14 is: 2,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.96 : 5,729.58 = 1,972.14 : x
  2. Step 2: Convert to fraction form
    3,821.96/5,729.58 = 1,972.14/x
  3. Step 3: Cross multiply
    3,821.96x = 5,729.58 × 1,972.14
  4. Step 4: Simplify right side
    3,821.96x = 11,299,533.90
  5. Step 5: Solve for x
    x = 11,299,533.90/3,821.96
  6. Step 6: Final answer
    x = 2,956.48

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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.