Home / 5,180.83-7,149.55-2,822.98

Finding the Fourth Proportional to 5,180.83, 7,149.55 and 2,822.98

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Solution

The fourth proportional to 5,180.83, 7,149.55 and 2,822.98 is: 3,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.83 : 7,149.55 = 2,822.98 : x
  2. Step 2: Convert to fraction form
    5,180.83/7,149.55 = 2,822.98/x
  3. Step 3: Cross multiply
    5,180.83x = 7,149.55 × 2,822.98
  4. Step 4: Simplify right side
    5,180.83x = 20,183,000.91
  5. Step 5: Solve for x
    x = 20,183,000.91/5,180.83
  6. Step 6: Final answer
    x = 3,895.71

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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.