Home / 5,230.82-7,218.89-2,872.99

Finding the Fourth Proportional to 5,230.82, 7,218.89 and 2,872.99

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Solution

The fourth proportional to 5,230.82, 7,218.89 and 2,872.99 is: 3,964.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.82 : 7,218.89 = 2,872.99 : x
  2. Step 2: Convert to fraction form
    5,230.82/7,218.89 = 2,872.99/x
  3. Step 3: Cross multiply
    5,230.82x = 7,218.89 × 2,872.99
  4. Step 4: Simplify right side
    5,230.82x = 20,739,748.32
  5. Step 5: Solve for x
    x = 20,739,748.32/5,230.82
  6. Step 6: Final answer
    x = 3,964.91

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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.