Home / 5,247.62-7,241.86-2,889.92

Finding the Fourth Proportional to 5,247.62, 7,241.86 and 2,889.92

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Solution

The fourth proportional to 5,247.62, 7,241.86 and 2,889.92 is: 3,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.62 : 7,241.86 = 2,889.92 : x
  2. Step 2: Convert to fraction form
    5,247.62/7,241.86 = 2,889.92/x
  3. Step 3: Cross multiply
    5,247.62x = 7,241.86 × 2,889.92
  4. Step 4: Simplify right side
    5,247.62x = 20,928,396.05
  5. Step 5: Solve for x
    x = 20,928,396.05/5,247.62
  6. Step 6: Final answer
    x = 3,988.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.