Home / 5,678.60-8,512.22-2,760.98

Finding the Fourth Proportional to 5,678.60, 8,512.22 and 2,760.98

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Solution

The fourth proportional to 5,678.60, 8,512.22 and 2,760.98 is: 4,138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.60 : 8,512.22 = 2,760.98 : x
  2. Step 2: Convert to fraction form
    5,678.60/8,512.22 = 2,760.98/x
  3. Step 3: Cross multiply
    5,678.60x = 8,512.22 × 2,760.98
  4. Step 4: Simplify right side
    5,678.60x = 23,502,069.18
  5. Step 5: Solve for x
    x = 23,502,069.18/5,678.60
  6. Step 6: Final answer
    x = 4,138.71

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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.