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Finding the Fourth Proportional to 2,914.54, 4,371.85 and 834.51

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Solution

The fourth proportional to 2,914.54, 4,371.85 and 834.51 is: 1,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.54 : 4,371.85 = 834.51 : x
  2. Step 2: Convert to fraction form
    2,914.54/4,371.85 = 834.51/x
  3. Step 3: Cross multiply
    2,914.54x = 4,371.85 × 834.51
  4. Step 4: Simplify right side
    2,914.54x = 3,648,352.54
  5. Step 5: Solve for x
    x = 3,648,352.54/2,914.54
  6. Step 6: Final answer
    x = 1,251.78

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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.