Home / 5,539.50-7,643.91-3,181.98

Finding the Fourth Proportional to 5,539.50, 7,643.91 and 3,181.98

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Solution

The fourth proportional to 5,539.50, 7,643.91 and 3,181.98 is: 4,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.50 : 7,643.91 = 3,181.98 : x
  2. Step 2: Convert to fraction form
    5,539.50/7,643.91 = 3,181.98/x
  3. Step 3: Cross multiply
    5,539.50x = 7,643.91 × 3,181.98
  4. Step 4: Simplify right side
    5,539.50x = 24,322,768.74
  5. Step 5: Solve for x
    x = 24,322,768.74/5,539.50
  6. Step 6: Final answer
    x = 4,390.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.