Home / 5,654.70-8,480.43-1,956.78

Finding the Fourth Proportional to 5,654.70, 8,480.43 and 1,956.78

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Solution

The fourth proportional to 5,654.70, 8,480.43 and 1,956.78 is: 2,934.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.70 : 8,480.43 = 1,956.78 : x
  2. Step 2: Convert to fraction form
    5,654.70/8,480.43 = 1,956.78/x
  3. Step 3: Cross multiply
    5,654.70x = 8,480.43 × 1,956.78
  4. Step 4: Simplify right side
    5,654.70x = 16,594,335.82
  5. Step 5: Solve for x
    x = 16,594,335.82/5,654.70
  6. Step 6: Final answer
    x = 2,934.61

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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.