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Finding the Fourth Proportional to 2,705.70, 3,734.46 and 1,629.66

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Solution

The fourth proportional to 2,705.70, 3,734.46 and 1,629.66 is: 2,249.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.70 : 3,734.46 = 1,629.66 : x
  2. Step 2: Convert to fraction form
    2,705.70/3,734.46 = 1,629.66/x
  3. Step 3: Cross multiply
    2,705.70x = 3,734.46 × 1,629.66
  4. Step 4: Simplify right side
    2,705.70x = 6,085,900.08
  5. Step 5: Solve for x
    x = 6,085,900.08/2,705.70
  6. Step 6: Final answer
    x = 2,249.29

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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.