Home / 7,758.30-11,635.69-2,211.52

Finding the Fourth Proportional to 7,758.30, 11,635.69 and 2,211.52

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Solution

The fourth proportional to 7,758.30, 11,635.69 and 2,211.52 is: 3,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.30 : 11,635.69 = 2,211.52 : x
  2. Step 2: Convert to fraction form
    7,758.30/11,635.69 = 2,211.52/x
  3. Step 3: Cross multiply
    7,758.30x = 11,635.69 × 2,211.52
  4. Step 4: Simplify right side
    7,758.30x = 25,732,561.15
  5. Step 5: Solve for x
    x = 25,732,561.15/7,758.30
  6. Step 6: Final answer
    x = 3,316.78

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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.