Home / 5,518.12-8,278.62-2,400.52

Finding the Fourth Proportional to 5,518.12, 8,278.62 and 2,400.52

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Solution

The fourth proportional to 5,518.12, 8,278.62 and 2,400.52 is: 3,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.12 : 8,278.62 = 2,400.52 : x
  2. Step 2: Convert to fraction form
    5,518.12/8,278.62 = 2,400.52/x
  3. Step 3: Cross multiply
    5,518.12x = 8,278.62 × 2,400.52
  4. Step 4: Simplify right side
    5,518.12x = 19,872,992.88
  5. Step 5: Solve for x
    x = 19,872,992.88/5,518.12
  6. Step 6: Final answer
    x = 3,601.41

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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.