Home / 5,411.12-8,102.01-2,808.59

Finding the Fourth Proportional to 5,411.12, 8,102.01 and 2,808.59

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Solution

The fourth proportional to 5,411.12, 8,102.01 and 2,808.59 is: 4,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.12 : 8,102.01 = 2,808.59 : x
  2. Step 2: Convert to fraction form
    5,411.12/8,102.01 = 2,808.59/x
  3. Step 3: Cross multiply
    5,411.12x = 8,102.01 × 2,808.59
  4. Step 4: Simplify right side
    5,411.12x = 22,755,201.73
  5. Step 5: Solve for x
    x = 22,755,201.73/5,411.12
  6. Step 6: Final answer
    x = 4,205.27

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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.