Home / 5,380.24-7,423.90-3,021.92

Finding the Fourth Proportional to 5,380.24, 7,423.90 and 3,021.92

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Solution

The fourth proportional to 5,380.24, 7,423.90 and 3,021.92 is: 4,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.24 : 7,423.90 = 3,021.92 : x
  2. Step 2: Convert to fraction form
    5,380.24/7,423.90 = 3,021.92/x
  3. Step 3: Cross multiply
    5,380.24x = 7,423.90 × 3,021.92
  4. Step 4: Simplify right side
    5,380.24x = 22,434,431.89
  5. Step 5: Solve for x
    x = 22,434,431.89/5,380.24
  6. Step 6: Final answer
    x = 4,169.78

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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.