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Finding the Fourth Proportional to 3,375.04, 5,062.80 and 909.80

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Solution

The fourth proportional to 3,375.04, 5,062.80 and 909.80 is: 1,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.04 : 5,062.80 = 909.80 : x
  2. Step 2: Convert to fraction form
    3,375.04/5,062.80 = 909.80/x
  3. Step 3: Cross multiply
    3,375.04x = 5,062.80 × 909.80
  4. Step 4: Simplify right side
    3,375.04x = 4,606,135.44
  5. Step 5: Solve for x
    x = 4,606,135.44/3,375.04
  6. Step 6: Final answer
    x = 1,364.76

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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.