Home / 5,230.63-7,218.41-2,872.92

Finding the Fourth Proportional to 5,230.63, 7,218.41 and 2,872.92

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Solution

The fourth proportional to 5,230.63, 7,218.41 and 2,872.92 is: 3,964.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.63 : 7,218.41 = 2,872.92 : x
  2. Step 2: Convert to fraction form
    5,230.63/7,218.41 = 2,872.92/x
  3. Step 3: Cross multiply
    5,230.63x = 7,218.41 × 2,872.92
  4. Step 4: Simplify right side
    5,230.63x = 20,737,940.56
  5. Step 5: Solve for x
    x = 20,737,940.56/5,230.63
  6. Step 6: Final answer
    x = 3,964.71

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1.5x scale

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.