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Finding the Fourth Proportional to 5,316, 7,336.08 and 3,108

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Solution

The fourth proportional to 5,316, 7,336.08 and 3,108 is: 4,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316 : 7,336.08 = 3,108 : x
  2. Step 2: Convert to fraction form
    5,316/7,336.08 = 3,108/x
  3. Step 3: Cross multiply
    5,316x = 7,336.08 × 3,108
  4. Step 4: Simplify right side
    5,316x = 22,800,536.64
  5. Step 5: Solve for x
    x = 22,800,536.64/5,316
  6. Step 6: Final answer
    x = 4,289.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.