Home / 3,821.53-5,731.23-1,356.02

Finding the Fourth Proportional to 3,821.53, 5,731.23 and 1,356.02

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Solution

The fourth proportional to 3,821.53, 5,731.23 and 1,356.02 is: 2,033.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.53 : 5,731.23 = 1,356.02 : x
  2. Step 2: Convert to fraction form
    3,821.53/5,731.23 = 1,356.02/x
  3. Step 3: Cross multiply
    3,821.53x = 5,731.23 × 1,356.02
  4. Step 4: Simplify right side
    3,821.53x = 7,771,662.50
  5. Step 5: Solve for x
    x = 7,771,662.50/3,821.53
  6. Step 6: Final answer
    x = 2,033.65

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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.