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Finding the Fourth Proportional to 4,766.88, 7,152.90 and 1,993.80

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Solution

The fourth proportional to 4,766.88, 7,152.90 and 1,993.80 is: 2,991.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,766.88 : 7,152.90 = 1,993.80 : x
  2. Step 2: Convert to fraction form
    4,766.88/7,152.90 = 1,993.80/x
  3. Step 3: Cross multiply
    4,766.88x = 7,152.90 × 1,993.80
  4. Step 4: Simplify right side
    4,766.88x = 14,261,452.02
  5. Step 5: Solve for x
    x = 14,261,452.02/4,766.88
  6. Step 6: Final answer
    x = 2,991.78

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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.