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Finding the Fourth Proportional to 2,676.92, 4,015.80 and 945.14

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Solution

The fourth proportional to 2,676.92, 4,015.80 and 945.14 is: 1,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.92 : 4,015.80 = 945.14 : x
  2. Step 2: Convert to fraction form
    2,676.92/4,015.80 = 945.14/x
  3. Step 3: Cross multiply
    2,676.92x = 4,015.80 × 945.14
  4. Step 4: Simplify right side
    2,676.92x = 3,795,493.21
  5. Step 5: Solve for x
    x = 3,795,493.21/2,676.92
  6. Step 6: Final answer
    x = 1,417.86

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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.