Home / 5,414.28-8,121.30-1,518.59

Finding the Fourth Proportional to 5,414.28, 8,121.30 and 1,518.59

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Solution

The fourth proportional to 5,414.28, 8,121.30 and 1,518.59 is: 2,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.28 : 8,121.30 = 1,518.59 : x
  2. Step 2: Convert to fraction form
    5,414.28/8,121.30 = 1,518.59/x
  3. Step 3: Cross multiply
    5,414.28x = 8,121.30 × 1,518.59
  4. Step 4: Simplify right side
    5,414.28x = 12,332,884.36
  5. Step 5: Solve for x
    x = 12,332,884.36/5,414.28
  6. Step 6: Final answer
    x = 2,277.84

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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.