Home / 7,379.88-11,071.98-2,185.89

Finding the Fourth Proportional to 7,379.88, 11,071.98 and 2,185.89

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Solution

The fourth proportional to 7,379.88, 11,071.98 and 2,185.89 is: 3,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.88 : 11,071.98 = 2,185.89 : x
  2. Step 2: Convert to fraction form
    7,379.88/11,071.98 = 2,185.89/x
  3. Step 3: Cross multiply
    7,379.88x = 11,071.98 × 2,185.89
  4. Step 4: Simplify right side
    7,379.88x = 24,202,130.36
  5. Step 5: Solve for x
    x = 24,202,130.36/7,379.88
  6. Step 6: Final answer
    x = 3,279.47

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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.