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Finding the Fourth Proportional to 5,393.99, 8,078.22 and 3,440.27

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Solution

The fourth proportional to 5,393.99, 8,078.22 and 3,440.27 is: 5,152.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.99 : 8,078.22 = 3,440.27 : x
  2. Step 2: Convert to fraction form
    5,393.99/8,078.22 = 3,440.27/x
  3. Step 3: Cross multiply
    5,393.99x = 8,078.22 × 3,440.27
  4. Step 4: Simplify right side
    5,393.99x = 27,791,217.53
  5. Step 5: Solve for x
    x = 27,791,217.53/5,393.99
  6. Step 6: Final answer
    x = 5,152.26

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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.