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Finding the Fourth Proportional to 5,323.78, 7,348.17 and 3,086.92

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Solution

The fourth proportional to 5,323.78, 7,348.17 and 3,086.92 is: 4,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.78 : 7,348.17 = 3,086.92 : x
  2. Step 2: Convert to fraction form
    5,323.78/7,348.17 = 3,086.92/x
  3. Step 3: Cross multiply
    5,323.78x = 7,348.17 × 3,086.92
  4. Step 4: Simplify right side
    5,323.78x = 22,683,212.94
  5. Step 5: Solve for x
    x = 22,683,212.94/5,323.78
  6. Step 6: Final answer
    x = 4,260.73

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1.5x scale

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.