Home / 5,414.28-8,121.38-1,518.68

Finding the Fourth Proportional to 5,414.28, 8,121.38 and 1,518.68

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Solution

The fourth proportional to 5,414.28, 8,121.38 and 1,518.68 is: 2,278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.28 : 8,121.38 = 1,518.68 : x
  2. Step 2: Convert to fraction form
    5,414.28/8,121.38 = 1,518.68/x
  3. Step 3: Cross multiply
    5,414.28x = 8,121.38 × 1,518.68
  4. Step 4: Simplify right side
    5,414.28x = 12,333,777.38
  5. Step 5: Solve for x
    x = 12,333,777.38/5,414.28
  6. Step 6: Final answer
    x = 2,278.01

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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.