Home / 5,438.80-8,158.20-3,324.70

Finding the Fourth Proportional to 5,438.80, 8,158.20 and 3,324.70

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Solution

The fourth proportional to 5,438.80, 8,158.20 and 3,324.70 is: 4,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.80 : 8,158.20 = 3,324.70 : x
  2. Step 2: Convert to fraction form
    5,438.80/8,158.20 = 3,324.70/x
  3. Step 3: Cross multiply
    5,438.80x = 8,158.20 × 3,324.70
  4. Step 4: Simplify right side
    5,438.80x = 27,123,567.54
  5. Step 5: Solve for x
    x = 27,123,567.54/5,438.80
  6. Step 6: Final answer
    x = 4,987.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.