Home / 5,251.21-7,245.42-2,982.05

Finding the Fourth Proportional to 5,251.21, 7,245.42 and 2,982.05

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Solution

The fourth proportional to 5,251.21, 7,245.42 and 2,982.05 is: 4,114.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.21 : 7,245.42 = 2,982.05 : x
  2. Step 2: Convert to fraction form
    5,251.21/7,245.42 = 2,982.05/x
  3. Step 3: Cross multiply
    5,251.21x = 7,245.42 × 2,982.05
  4. Step 4: Simplify right side
    5,251.21x = 21,606,184.47
  5. Step 5: Solve for x
    x = 21,606,184.47/5,251.21
  6. Step 6: Final answer
    x = 4,114.52

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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.