Home / 5,421.50-7,479.66-3,183.48

Finding the Fourth Proportional to 5,421.50, 7,479.66 and 3,183.48

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Solution

The fourth proportional to 5,421.50, 7,479.66 and 3,183.48 is: 4,392.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.50 : 7,479.66 = 3,183.48 : x
  2. Step 2: Convert to fraction form
    5,421.50/7,479.66 = 3,183.48/x
  3. Step 3: Cross multiply
    5,421.50x = 7,479.66 × 3,183.48
  4. Step 4: Simplify right side
    5,421.50x = 23,811,348.02
  5. Step 5: Solve for x
    x = 23,811,348.02/5,421.50
  6. Step 6: Final answer
    x = 4,392.02

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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.