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Finding the Fourth Proportional to 2,740.92, 4,110.99 and 892.05

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Solution

The fourth proportional to 2,740.92, 4,110.99 and 892.05 is: 1,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.92 : 4,110.99 = 892.05 : x
  2. Step 2: Convert to fraction form
    2,740.92/4,110.99 = 892.05/x
  3. Step 3: Cross multiply
    2,740.92x = 4,110.99 × 892.05
  4. Step 4: Simplify right side
    2,740.92x = 3,667,208.63
  5. Step 5: Solve for x
    x = 3,667,208.63/2,740.92
  6. Step 6: Final answer
    x = 1,337.95

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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.