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Finding the Fourth Proportional to 2,742.92, 4,114.11 and 893.96

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Solution

The fourth proportional to 2,742.92, 4,114.11 and 893.96 is: 1,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.92 : 4,114.11 = 893.96 : x
  2. Step 2: Convert to fraction form
    2,742.92/4,114.11 = 893.96/x
  3. Step 3: Cross multiply
    2,742.92x = 4,114.11 × 893.96
  4. Step 4: Simplify right side
    2,742.92x = 3,677,849.78
  5. Step 5: Solve for x
    x = 3,677,849.78/2,742.92
  6. Step 6: Final answer
    x = 1,340.85

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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.