Home / 5,516.19-8,274.42-1,620.90

Finding the Fourth Proportional to 5,516.19, 8,274.42 and 1,620.90

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Solution

The fourth proportional to 5,516.19, 8,274.42 and 1,620.90 is: 2,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.19 : 8,274.42 = 1,620.90 : x
  2. Step 2: Convert to fraction form
    5,516.19/8,274.42 = 1,620.90/x
  3. Step 3: Cross multiply
    5,516.19x = 8,274.42 × 1,620.90
  4. Step 4: Simplify right side
    5,516.19x = 13,412,007.38
  5. Step 5: Solve for x
    x = 13,412,007.38/5,516.19
  6. Step 6: Final answer
    x = 2,431.39

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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.