Home / 5,138.12-7,708.73-2,175.04

Finding the Fourth Proportional to 5,138.12, 7,708.73 and 2,175.04

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Solution

The fourth proportional to 5,138.12, 7,708.73 and 2,175.04 is: 3,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.12 : 7,708.73 = 2,175.04 : x
  2. Step 2: Convert to fraction form
    5,138.12/7,708.73 = 2,175.04/x
  3. Step 3: Cross multiply
    5,138.12x = 7,708.73 × 2,175.04
  4. Step 4: Simplify right side
    5,138.12x = 16,766,796.10
  5. Step 5: Solve for x
    x = 16,766,796.10/5,138.12
  6. Step 6: Final answer
    x = 3,263.22

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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.