Home / 5,378.60-8,067.90-4,082.60

Finding the Fourth Proportional to 5,378.60, 8,067.90 and 4,082.60

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Solution

The fourth proportional to 5,378.60, 8,067.90 and 4,082.60 is: 6,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.60 : 8,067.90 = 4,082.60 : x
  2. Step 2: Convert to fraction form
    5,378.60/8,067.90 = 4,082.60/x
  3. Step 3: Cross multiply
    5,378.60x = 8,067.90 × 4,082.60
  4. Step 4: Simplify right side
    5,378.60x = 32,938,008.54
  5. Step 5: Solve for x
    x = 32,938,008.54/5,378.60
  6. Step 6: Final answer
    x = 6,123.90

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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.