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Finding the Fourth Proportional to 5,216.52, 7,811.10 and 4,388.52

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Solution

The fourth proportional to 5,216.52, 7,811.10 and 4,388.52 is: 6,571.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.52 : 7,811.10 = 4,388.52 : x
  2. Step 2: Convert to fraction form
    5,216.52/7,811.10 = 4,388.52/x
  3. Step 3: Cross multiply
    5,216.52x = 7,811.10 × 4,388.52
  4. Step 4: Simplify right side
    5,216.52x = 34,279,168.57
  5. Step 5: Solve for x
    x = 34,279,168.57/5,216.52
  6. Step 6: Final answer
    x = 6,571.27

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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.