Home / 3,621.75-5,435.23-1,543.22

Finding the Fourth Proportional to 3,621.75, 5,435.23 and 1,543.22

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Solution

The fourth proportional to 3,621.75, 5,435.23 and 1,543.22 is: 2,315.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.75 : 5,435.23 = 1,543.22 : x
  2. Step 2: Convert to fraction form
    3,621.75/5,435.23 = 1,543.22/x
  3. Step 3: Cross multiply
    3,621.75x = 5,435.23 × 1,543.22
  4. Step 4: Simplify right side
    3,621.75x = 8,387,755.64
  5. Step 5: Solve for x
    x = 8,387,755.64/3,621.75
  6. Step 6: Final answer
    x = 2,315.94

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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.