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Finding the Fourth Proportional to 3,917.68, 5,871.31 and 1,450.22

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Solution

The fourth proportional to 3,917.68, 5,871.31 and 1,450.22 is: 2,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.68 : 5,871.31 = 1,450.22 : x
  2. Step 2: Convert to fraction form
    3,917.68/5,871.31 = 1,450.22/x
  3. Step 3: Cross multiply
    3,917.68x = 5,871.31 × 1,450.22
  4. Step 4: Simplify right side
    3,917.68x = 8,514,691.19
  5. Step 5: Solve for x
    x = 8,514,691.19/3,917.68
  6. Step 6: Final answer
    x = 2,173.40

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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.