Home / 3,689.20-5,543.36-2,773.39

Finding the Fourth Proportional to 3,689.20, 5,543.36 and 2,773.39

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Solution

The fourth proportional to 3,689.20, 5,543.36 and 2,773.39 is: 4,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.20 : 5,543.36 = 2,773.39 : x
  2. Step 2: Convert to fraction form
    3,689.20/5,543.36 = 2,773.39/x
  3. Step 3: Cross multiply
    3,689.20x = 5,543.36 × 2,773.39
  4. Step 4: Simplify right side
    3,689.20x = 15,373,900.06
  5. Step 5: Solve for x
    x = 15,373,900.06/3,689.20
  6. Step 6: Final answer
    x = 4,167.28

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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.