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Finding the Fourth Proportional to 5,367.95, 8,048.84 and 3,178.21

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Solution

The fourth proportional to 5,367.95, 8,048.84 and 3,178.21 is: 4,765.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,367.95 : 8,048.84 = 3,178.21 : x
  2. Step 2: Convert to fraction form
    5,367.95/8,048.84 = 3,178.21/x
  3. Step 3: Cross multiply
    5,367.95x = 8,048.84 × 3,178.21
  4. Step 4: Simplify right side
    5,367.95x = 25,580,932.31
  5. Step 5: Solve for x
    x = 25,580,932.31/5,367.95
  6. Step 6: Final answer
    x = 4,765.50

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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.