Home / 5,872.78-8,104.94-3,220.70

Finding the Fourth Proportional to 5,872.78, 8,104.94 and 3,220.70

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Solution

The fourth proportional to 5,872.78, 8,104.94 and 3,220.70 is: 4,444.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.78 : 8,104.94 = 3,220.70 : x
  2. Step 2: Convert to fraction form
    5,872.78/8,104.94 = 3,220.70/x
  3. Step 3: Cross multiply
    5,872.78x = 8,104.94 × 3,220.70
  4. Step 4: Simplify right side
    5,872.78x = 26,103,608.57
  5. Step 5: Solve for x
    x = 26,103,608.57/5,872.78
  6. Step 6: Final answer
    x = 4,444.85

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1.5x scale

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.