Home / 5,230.54-7,218.20-2,872.70

Finding the Fourth Proportional to 5,230.54, 7,218.20 and 2,872.70

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Solution

The fourth proportional to 5,230.54, 7,218.20 and 2,872.70 is: 3,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.54 : 7,218.20 = 2,872.70 : x
  2. Step 2: Convert to fraction form
    5,230.54/7,218.20 = 2,872.70/x
  3. Step 3: Cross multiply
    5,230.54x = 7,218.20 × 2,872.70
  4. Step 4: Simplify right side
    5,230.54x = 20,735,723.14
  5. Step 5: Solve for x
    x = 20,735,723.14/5,230.54
  6. Step 6: Final answer
    x = 3,964.36

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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.