Home / 5,516.27-8,274.55-1,620.80

Finding the Fourth Proportional to 5,516.27, 8,274.55 and 1,620.80

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Solution

The fourth proportional to 5,516.27, 8,274.55 and 1,620.80 is: 2,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.27 : 8,274.55 = 1,620.80 : x
  2. Step 2: Convert to fraction form
    5,516.27/8,274.55 = 1,620.80/x
  3. Step 3: Cross multiply
    5,516.27x = 8,274.55 × 1,620.80
  4. Step 4: Simplify right side
    5,516.27x = 13,411,382.54
  5. Step 5: Solve for x
    x = 13,411,382.54/5,516.27
  6. Step 6: Final answer
    x = 2,431.24

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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.