Home / 3,591.78-5,382.80-2,543.64

Finding the Fourth Proportional to 3,591.78, 5,382.80 and 2,543.64

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Solution

The fourth proportional to 3,591.78, 5,382.80 and 2,543.64 is: 3,812.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.78 : 5,382.80 = 2,543.64 : x
  2. Step 2: Convert to fraction form
    3,591.78/5,382.80 = 2,543.64/x
  3. Step 3: Cross multiply
    3,591.78x = 5,382.80 × 2,543.64
  4. Step 4: Simplify right side
    3,591.78x = 13,691,905.39
  5. Step 5: Solve for x
    x = 13,691,905.39/3,591.78
  6. Step 6: Final answer
    x = 3,812.01

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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.