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Finding the Fourth Proportional to 3,074.76, 4,241.96 and 1,893.78

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Solution

The fourth proportional to 3,074.76, 4,241.96 and 1,893.78 is: 2,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.76 : 4,241.96 = 1,893.78 : x
  2. Step 2: Convert to fraction form
    3,074.76/4,241.96 = 1,893.78/x
  3. Step 3: Cross multiply
    3,074.76x = 4,241.96 × 1,893.78
  4. Step 4: Simplify right side
    3,074.76x = 8,033,339.01
  5. Step 5: Solve for x
    x = 8,033,339.01/3,074.76
  6. Step 6: Final answer
    x = 2,612.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.