Home / 5,251.70-7,247.21-2,893.79

Finding the Fourth Proportional to 5,251.70, 7,247.21 and 2,893.79

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Solution

The fourth proportional to 5,251.70, 7,247.21 and 2,893.79 is: 3,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.70 : 7,247.21 = 2,893.79 : x
  2. Step 2: Convert to fraction form
    5,251.70/7,247.21 = 2,893.79/x
  3. Step 3: Cross multiply
    5,251.70x = 7,247.21 × 2,893.79
  4. Step 4: Simplify right side
    5,251.70x = 20,971,907.47
  5. Step 5: Solve for x
    x = 20,971,907.47/5,251.70
  6. Step 6: Final answer
    x = 3,993.35

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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.