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Finding the Fourth Proportional to 3,872.03, 5,808.92 and 1,406.84

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Solution

The fourth proportional to 3,872.03, 5,808.92 and 1,406.84 is: 2,110.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.03 : 5,808.92 = 1,406.84 : x
  2. Step 2: Convert to fraction form
    3,872.03/5,808.92 = 1,406.84/x
  3. Step 3: Cross multiply
    3,872.03x = 5,808.92 × 1,406.84
  4. Step 4: Simplify right side
    3,872.03x = 8,172,221.01
  5. Step 5: Solve for x
    x = 8,172,221.01/3,872.03
  6. Step 6: Final answer
    x = 2,110.58

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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.