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Finding the Fourth Proportional to 6,940.91, 10,390.92 and 4,468.39

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Solution

The fourth proportional to 6,940.91, 10,390.92 and 4,468.39 is: 6,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.91 : 10,390.92 = 4,468.39 : x
  2. Step 2: Convert to fraction form
    6,940.91/10,390.92 = 4,468.39/x
  3. Step 3: Cross multiply
    6,940.91x = 10,390.92 × 4,468.39
  4. Step 4: Simplify right side
    6,940.91x = 46,430,640.29
  5. Step 5: Solve for x
    x = 46,430,640.29/6,940.91
  6. Step 6: Final answer
    x = 6,689.41

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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.