Home / 7,872.24-11,808.36-2,028.90

Finding the Fourth Proportional to 7,872.24, 11,808.36 and 2,028.90

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Solution

The fourth proportional to 7,872.24, 11,808.36 and 2,028.90 is: 3,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.24 : 11,808.36 = 2,028.90 : x
  2. Step 2: Convert to fraction form
    7,872.24/11,808.36 = 2,028.90/x
  3. Step 3: Cross multiply
    7,872.24x = 11,808.36 × 2,028.90
  4. Step 4: Simplify right side
    7,872.24x = 23,957,981.60
  5. Step 5: Solve for x
    x = 23,957,981.60/7,872.24
  6. Step 6: Final answer
    x = 3,043.35

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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.