Home / 5,516.47-8,276.08-1,620.88

Finding the Fourth Proportional to 5,516.47, 8,276.08 and 1,620.88

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Solution

The fourth proportional to 5,516.47, 8,276.08 and 1,620.88 is: 2,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.47 : 8,276.08 = 1,620.88 : x
  2. Step 2: Convert to fraction form
    5,516.47/8,276.08 = 1,620.88/x
  3. Step 3: Cross multiply
    5,516.47x = 8,276.08 × 1,620.88
  4. Step 4: Simplify right side
    5,516.47x = 13,414,532.55
  5. Step 5: Solve for x
    x = 13,414,532.55/5,516.47
  6. Step 6: Final answer
    x = 2,431.72

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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.