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Finding the Fourth Proportional to 3,516.68, 5,275.20 and 1,208

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Solution

The fourth proportional to 3,516.68, 5,275.20 and 1,208 is: 1,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516.68 : 5,275.20 = 1,208 : x
  2. Step 2: Convert to fraction form
    3,516.68/5,275.20 = 1,208/x
  3. Step 3: Cross multiply
    3,516.68x = 5,275.20 × 1,208
  4. Step 4: Simplify right side
    3,516.68x = 6,372,441.60
  5. Step 5: Solve for x
    x = 6,372,441.60/3,516.68
  6. Step 6: Final answer
    x = 1,812.06

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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.